/*
 *  Catch v2.5.0
 *  Generated: 2018-11-26 20:46:12.165372
 *  ----------------------------------------------------------
 *  This file has been merged from multiple headers. Please don't edit it
 * directly Copyright (c) 2018 Two Blue Cubes Ltd. All rights reserved.
 *
 *  Distributed under the Boost Software License, Version 1.0. (See accompanying
 *  file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
 */
#ifndef TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
#define TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED
// start catch.hpp

#define CATCH_VERSION_MAJOR 2
#define CATCH_VERSION_MINOR 5
#define CATCH_VERSION_PATCH 0

#ifdef __clang__
#pragma clang system_header
#elif defined __GNUC__
#pragma GCC system_header
#endif

// start catch_suppress_warnings.h

#ifdef __clang__
#ifdef __ICC  // icpc defines the __clang__ macro
#pragma warning(push)
#pragma warning(disable : 161 1682)
#else  // __ICC
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#pragma clang diagnostic ignored "-Wswitch-enum"
#pragma clang diagnostic ignored "-Wcovered-switch-default"
#endif
#elif defined __GNUC__
// GCC likes to warn on REQUIREs, and we cannot suppress them
// locally because g++'s support for _Pragma is lacking in older,
// still supported, versions
#pragma GCC diagnostic ignored "-Wparentheses"
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-variable"
#pragma GCC diagnostic ignored "-Wpadded"
#endif
// end catch_suppress_warnings.h
#if defined(CATCH_CONFIG_MAIN) || defined(CATCH_CONFIG_RUNNER)
#define CATCH_IMPL
#define CATCH_CONFIG_ALL_PARTS
#endif

// In the impl file, we want to have access to all parts of the headers
// Can also be used to sanely support PCHs
#if defined(CATCH_CONFIG_ALL_PARTS)
#define CATCH_CONFIG_EXTERNAL_INTERFACES
#if defined(CATCH_CONFIG_DISABLE_MATCHERS)
#undef CATCH_CONFIG_DISABLE_MATCHERS
#endif
#if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif
#endif

#if !defined(CATCH_CONFIG_IMPL_ONLY)
// start catch_platform.h

#ifdef __APPLE__
#include <TargetConditionals.h>
#if TARGET_OS_OSX == 1
#define CATCH_PLATFORM_MAC
#elif TARGET_OS_IPHONE == 1
#define CATCH_PLATFORM_IPHONE
#endif

#elif defined(linux) || defined(__linux) || defined(__linux__)
#define CATCH_PLATFORM_LINUX

#elif defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || \
    defined(_MSC_VER) || defined(__MINGW32__)
#define CATCH_PLATFORM_WINDOWS
#endif

// end catch_platform.h

#ifdef CATCH_IMPL
#ifndef CLARA_CONFIG_MAIN
#define CLARA_CONFIG_MAIN_NOT_DEFINED
#define CLARA_CONFIG_MAIN
#endif
#endif

// start catch_user_interfaces.h

namespace Catch {
unsigned int rngSeed();
}

// end catch_user_interfaces.h
// start catch_tag_alias_autoregistrar.h

// start catch_common.h

// start catch_compiler_capabilities.h

// Detect a number of compiler features - by compiler
// The following features are defined:
//
// CATCH_CONFIG_COUNTER : is the __COUNTER__ macro supported?
// CATCH_CONFIG_WINDOWS_SEH : is Windows SEH supported?
// CATCH_CONFIG_POSIX_SIGNALS : are POSIX signals supported?
// CATCH_CONFIG_DISABLE_EXCEPTIONS : Are exceptions enabled?
// ****************
// Note to maintainers: if new toggles are added please document them
// in configuration.md, too
// ****************

// In general each macro has a _NO_<feature name> form
// (e.g. CATCH_CONFIG_NO_POSIX_SIGNALS) which disables the feature.
// Many features, at point of detection, define an _INTERNAL_ macro, so they
// can be combined, en-mass, with the _NO_ forms later.

#ifdef __cplusplus

#if (__cplusplus >= 201402L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201402L)
#define CATCH_CPP14_OR_GREATER
#endif

#if (__cplusplus >= 201703L) || (defined(_MSVC_LANG) && _MSVC_LANG >= 201703L)
#define CATCH_CPP17_OR_GREATER
#endif

/* Disable C++17 on older GCC versions. */
#if defined(__GNUC__) && !defined(_GLIBCXX_RELEASE)
#undef CATCH_CPP17_OR_GREATER
#endif

#endif

#if defined(CATCH_CPP17_OR_GREATER)
#define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

#ifdef __clang__

#define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                      \
  _Pragma("clang diagnostic push")                                    \
      _Pragma("clang diagnostic ignored \"-Wexit-time-destructors\"") \
          _Pragma("clang diagnostic ignored \"-Wglobal-constructors\"")
#define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS \
  _Pragma("clang diagnostic pop")

#define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS \
  _Pragma("clang diagnostic push")                   \
      _Pragma("clang diagnostic ignored \"-Wparentheses\"")
#define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS \
  _Pragma("clang diagnostic pop")

#define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS \
  _Pragma("clang diagnostic push")              \
      _Pragma("clang diagnostic ignored \"-Wunused-variable\"")
#define CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS \
  _Pragma("clang diagnostic pop")

#endif  // __clang__

////////////////////////////////////////////////////////////////////////////////
// Assume that non-Windows platforms support posix signals by default
#if !defined(CATCH_PLATFORM_WINDOWS)
#define CATCH_INTERNAL_CONFIG_POSIX_SIGNALS
#endif

////////////////////////////////////////////////////////////////////////////////
// We know some environments not to support full POSIX signals
#if defined(__CYGWIN__) || defined(__QNX__) || defined(__EMSCRIPTEN__) || \
    defined(__DJGPP__)
#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#endif

#ifdef __OS400__
#define CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS
#define CATCH_CONFIG_COLOUR_NONE
#endif

////////////////////////////////////////////////////////////////////////////////
// Android somehow still does not support std::to_string
#if defined(__ANDROID__)
#define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING
#endif

////////////////////////////////////////////////////////////////////////////////
// Not all Windows environments support SEH properly
#if defined(__MINGW32__)
#define CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH
#endif

////////////////////////////////////////////////////////////////////////////////
// PS4
#if defined(__ORBIS__)
#define CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE
#endif

////////////////////////////////////////////////////////////////////////////////
// Cygwin
#ifdef __CYGWIN__

// Required for some versions of Cygwin to declare gettimeofday
// see:
// http://stackoverflow.com/questions/36901803/gettimeofday-not-declared-in-this-scope-cygwin
#define _BSD_SOURCE
// some versions of cygwin (most) do not support std::to_string. Use the libstd
// check.
// https://gcc.gnu.org/onlinedocs/gcc-4.8.2/libstdc++/api/a01053_source.html
// line 2812-2813
#if !((__cplusplus >= 201103L) && defined(_GLIBCXX_USE_C99) && \
      !defined(_GLIBCXX_HAVE_BROKEN_VSWPRINTF))

#define CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING

#endif
#endif  // __CYGWIN__

////////////////////////////////////////////////////////////////////////////////
// Visual C++
#ifdef _MSC_VER

#if _MSC_VER >= 1900  // Visual Studio 2015 or newer
#define CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

// Universal Windows platform does not support SEH
// Or console colours (or console at all...)
#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_APP)
#define CATCH_CONFIG_COLOUR_NONE
#else
#define CATCH_INTERNAL_CONFIG_WINDOWS_SEH
#endif

// MSVC traditional preprocessor needs some workaround for __VA_ARGS__
// _MSVC_TRADITIONAL == 0 means new conformant preprocessor
// _MSVC_TRADITIONAL == 1 means old traditional non-conformant preprocessor
#if !defined(_MSVC_TRADITIONAL) || \
    (defined(_MSVC_TRADITIONAL) && _MSVC_TRADITIONAL)
#define CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#endif

#endif  // _MSC_VER

////////////////////////////////////////////////////////////////////////////////
// Check if we are compiled with -fno-exceptions or equivalent
#if defined(__EXCEPTIONS) || defined(__cpp_exceptions) || defined(_CPPUNWIND)
#define CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED
#endif

////////////////////////////////////////////////////////////////////////////////
// DJGPP
#ifdef __DJGPP__
#define CATCH_INTERNAL_CONFIG_NO_WCHAR
#endif  // __DJGPP__

////////////////////////////////////////////////////////////////////////////////
// Embarcadero C++Build
#if defined(__BORLANDC__)
#define CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN
#endif

////////////////////////////////////////////////////////////////////////////////

// Use of __COUNTER__ is suppressed during code analysis in
// CLion/AppCode 2017.2.x and former, because __COUNTER__ is not properly
// handled by it.
// Otherwise all supported compilers support COUNTER macro,
// but user still might want to turn it off
#if (!defined(__JETBRAINS_IDE__) || __JETBRAINS_IDE__ >= 20170300L)
#define CATCH_INTERNAL_CONFIG_COUNTER
#endif

////////////////////////////////////////////////////////////////////////////////
// Check if string_view is available and usable
// The check is split apart to work around v140 (VS2015) preprocessor issue...
#if defined(__has_include)
#if __has_include(<string_view>) && defined(CATCH_CPP17_OR_GREATER)
#define CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW
#endif
#endif

////////////////////////////////////////////////////////////////////////////////
// Check if variant is available and usable
#if defined(__has_include)
#if __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
#if defined(__clang__) && (__clang_major__ < 8)
// work around clang bug with libstdc++
// https://bugs.llvm.org/show_bug.cgi?id=31852 fix should be in clang 8,
// workaround in libstdc++ 8.2
#include <ciso646>
#if defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) && (_GLIBCXX_RELEASE < 9)
#define CATCH_CONFIG_NO_CPP17_VARIANT
#else
#define CATCH_INTERNAL_CONFIG_CPP17_VARIANT
#endif  // defined(__GLIBCXX__) && defined(_GLIBCXX_RELEASE) &&
        // (_GLIBCXX_RELEASE < 9)
#endif  // defined(__clang__) && (__clang_major__ < 8)
#endif  // __has_include(<variant>) && defined(CATCH_CPP17_OR_GREATER)
#endif  // __has_include

#if defined(CATCH_INTERNAL_CONFIG_COUNTER) && \
    !defined(CATCH_CONFIG_NO_COUNTER) && !defined(CATCH_CONFIG_COUNTER)
#define CATCH_CONFIG_COUNTER
#endif
#if defined(CATCH_INTERNAL_CONFIG_WINDOWS_SEH) && \
    !defined(CATCH_CONFIG_NO_WINDOWS_SEH) &&      \
    !defined(CATCH_CONFIG_WINDOWS_SEH) &&         \
    !defined(CATCH_INTERNAL_CONFIG_NO_WINDOWS_SEH)
#define CATCH_CONFIG_WINDOWS_SEH
#endif
// This is set by default, because we assume that unix compilers are
// posix-signal-compatible by default.
#if defined(CATCH_INTERNAL_CONFIG_POSIX_SIGNALS) &&     \
    !defined(CATCH_INTERNAL_CONFIG_NO_POSIX_SIGNALS) && \
    !defined(CATCH_CONFIG_NO_POSIX_SIGNALS) &&          \
    !defined(CATCH_CONFIG_POSIX_SIGNALS)
#define CATCH_CONFIG_POSIX_SIGNALS
#endif
// This is set by default, because we assume that compilers with no wchar_t
// support are just rare exceptions.
#if !defined(CATCH_INTERNAL_CONFIG_NO_WCHAR) && \
    !defined(CATCH_CONFIG_NO_WCHAR) && !defined(CATCH_CONFIG_WCHAR)
#define CATCH_CONFIG_WCHAR
#endif

#if !defined(CATCH_INTERNAL_CONFIG_NO_CPP11_TO_STRING) && \
    !defined(CATCH_CONFIG_NO_CPP11_TO_STRING) &&          \
    !defined(CATCH_CONFIG_CPP11_TO_STRING)
#define CATCH_CONFIG_CPP11_TO_STRING
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS) && \
    !defined(CATCH_CONFIG_NO_CPP17_UNCAUGHT_EXCEPTIONS) &&      \
    !defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
#define CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_STRING_VIEW) && \
    !defined(CATCH_CONFIG_NO_CPP17_STRING_VIEW) &&      \
    !defined(CATCH_CONFIG_CPP17_STRING_VIEW)
#define CATCH_CONFIG_CPP17_STRING_VIEW
#endif

#if defined(CATCH_INTERNAL_CONFIG_CPP17_VARIANT) && \
    !defined(CATCH_CONFIG_NO_CPP17_VARIANT) &&      \
    !defined(CATCH_CONFIG_CPP17_VARIANT)
#define CATCH_CONFIG_CPP17_VARIANT
#endif

#if defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
#define CATCH_INTERNAL_CONFIG_NEW_CAPTURE
#endif

#if defined(CATCH_INTERNAL_CONFIG_NEW_CAPTURE) &&     \
    !defined(CATCH_INTERNAL_CONFIG_NO_NEW_CAPTURE) && \
    !defined(CATCH_CONFIG_NO_NEW_CAPTURE) &&          \
    !defined(CATCH_CONFIG_NEW_CAPTURE)
#define CATCH_CONFIG_NEW_CAPTURE
#endif

#if !defined(CATCH_INTERNAL_CONFIG_EXCEPTIONS_ENABLED) && \
    !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
#define CATCH_CONFIG_DISABLE_EXCEPTIONS
#endif

#if defined(CATCH_INTERNAL_CONFIG_POLYFILL_ISNAN) && \
    !defined(CATCH_CONFIG_NO_POLYFILL_ISNAN) &&      \
    !defined(CATCH_CONFIG_POLYFILL_ISNAN)
#define CATCH_CONFIG_POLYFILL_ISNAN
#endif

#if !defined(CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS)
#define CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS
#define CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS)
#define CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#define CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS
#endif
#if !defined(CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS)
#define CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS
#define CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS
#endif

#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
#define CATCH_TRY if ((true))
#define CATCH_CATCH_ALL if ((false))
#define CATCH_CATCH_ANON(type) if ((false))
#else
#define CATCH_TRY try
#define CATCH_CATCH_ALL catch (...)
#define CATCH_CATCH_ANON(type) catch (type)
#endif

#if defined(CATCH_INTERNAL_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR) && \
    !defined(CATCH_CONFIG_NO_TRADITIONAL_MSVC_PREPROCESSOR) &&      \
    !defined(CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR)
#define CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#endif

// end catch_compiler_capabilities.h
#define INTERNAL_CATCH_UNIQUE_NAME_LINE2(name, line) name##line
#define INTERNAL_CATCH_UNIQUE_NAME_LINE(name, line) \
  INTERNAL_CATCH_UNIQUE_NAME_LINE2(name, line)
#ifdef CATCH_CONFIG_COUNTER
#define INTERNAL_CATCH_UNIQUE_NAME(name) \
  INTERNAL_CATCH_UNIQUE_NAME_LINE(name, __COUNTER__)
#else
#define INTERNAL_CATCH_UNIQUE_NAME(name) \
  INTERNAL_CATCH_UNIQUE_NAME_LINE(name, __LINE__)
#endif

#include <cstdint>
#include <iosfwd>
#include <string>

// We need a dummy global operator<< so we can bring it into Catch namespace
// later
struct Catch_global_namespace_dummy {};
std::ostream& operator<<(std::ostream&, Catch_global_namespace_dummy);

namespace Catch {

struct CaseSensitive {
  enum Choice { Yes, No };
};

class NonCopyable {
  NonCopyable(NonCopyable const&) = delete;
  NonCopyable(NonCopyable&&) = delete;
  NonCopyable& operator=(NonCopyable const&) = delete;
  NonCopyable& operator=(NonCopyable&&) = delete;

 protected:
  NonCopyable();
  virtual ~NonCopyable();
};

struct SourceLineInfo {
  SourceLineInfo() = delete;
  SourceLineInfo(char const* _file, std::size_t _line) noexcept
      : file(_file), line(_line) {}

  SourceLineInfo(SourceLineInfo const& other) = default;
  SourceLineInfo(SourceLineInfo&&) = default;
  SourceLineInfo& operator=(SourceLineInfo const&) = default;
  SourceLineInfo& operator=(SourceLineInfo&&) = default;

  bool empty() const noexcept;
  bool operator==(SourceLineInfo const& other) const noexcept;
  bool operator<(SourceLineInfo const& other) const noexcept;

  char const* file;
  std::size_t line;
};

std::ostream& operator<<(std::ostream& os, SourceLineInfo const& info);

// Bring in operator<< from global namespace into Catch namespace
// This is necessary because the overload of operator<< above makes
// lookup stop at namespace Catch
using ::operator<<;

// Use this in variadic streaming macros to allow
//    >> +StreamEndStop
// as well as
//    >> stuff +StreamEndStop
struct StreamEndStop {
  std::string operator+() const;
};
template <typename T>
T const& operator+(T const& value, StreamEndStop) {
  return value;
}
}  // namespace Catch

#define CATCH_INTERNAL_LINEINFO \
  ::Catch::SourceLineInfo(__FILE__, static_cast<std::size_t>(__LINE__))

// end catch_common.h
namespace Catch {

struct RegistrarForTagAliases {
  RegistrarForTagAliases(char const* alias, char const* tag,
                         SourceLineInfo const& lineInfo);
};

}  // end namespace Catch

#define CATCH_REGISTER_TAG_ALIAS(alias, spec)                      \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                         \
  namespace {                                                      \
  Catch::RegistrarForTagAliases INTERNAL_CATCH_UNIQUE_NAME(        \
      AutoRegisterTagAlias)(alias, spec, CATCH_INTERNAL_LINEINFO); \
  }                                                                \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

// end catch_tag_alias_autoregistrar.h
// start catch_test_registry.h

// start catch_interfaces_testcase.h

#include <memory>
#include <vector>

namespace Catch {

class TestSpec;

struct ITestInvoker {
  virtual void invoke() const = 0;
  virtual ~ITestInvoker();
};

using ITestCasePtr = std::shared_ptr<ITestInvoker>;

class TestCase;
struct IConfig;

struct ITestCaseRegistry {
  virtual ~ITestCaseRegistry();
  virtual std::vector<TestCase> const& getAllTests() const = 0;
  virtual std::vector<TestCase> const& getAllTestsSorted(
      IConfig const& config) const = 0;
};

bool matchTest(TestCase const& testCase, TestSpec const& testSpec,
               IConfig const& config);
std::vector<TestCase> filterTests(std::vector<TestCase> const& testCases,
                                  TestSpec const& testSpec,
                                  IConfig const& config);
std::vector<TestCase> const& getAllTestCasesSorted(IConfig const& config);

}  // namespace Catch

// end catch_interfaces_testcase.h
// start catch_stringref.h

#include <cstddef>
#include <iosfwd>
#include <string>

namespace Catch {

class StringData;

/// A non-owning string class (similar to the forthcoming std::string_view)
/// Note that, because a StringRef may be a substring of another string,
/// it may not be null terminated. c_str() must return a null terminated
/// string, however, and so the StringRef will internally take ownership
/// (taking a copy), if necessary. In theory this ownership is not externally
/// visible - but it does mean (substring) StringRefs should not be shared
/// between threads.
class StringRef {
 public:
  using size_type = std::size_t;

 private:
  friend struct StringRefTestAccess;

  char const* m_start;
  size_type m_size;

  char* m_data = nullptr;

  void takeOwnership();

  static constexpr char const* const s_empty = "";

 public:  // construction/ assignment
  StringRef() noexcept : StringRef(s_empty, 0) {}

  StringRef(StringRef const& other) noexcept
      : m_start(other.m_start), m_size(other.m_size) {}

  StringRef(StringRef&& other) noexcept
      : m_start(other.m_start), m_size(other.m_size), m_data(other.m_data) {
    other.m_data = nullptr;
  }

  StringRef(char const* rawChars) noexcept;

  StringRef(char const* rawChars, size_type size) noexcept
      : m_start(rawChars), m_size(size) {}

  StringRef(std::string const& stdString) noexcept
      : m_start(stdString.c_str()), m_size(stdString.size()) {}

  ~StringRef() noexcept { delete[] m_data; }

  auto operator=(StringRef const& other) noexcept -> StringRef& {
    delete[] m_data;
    m_data = nullptr;
    m_start = other.m_start;
    m_size = other.m_size;
    return *this;
  }

  operator std::string() const;

  void swap(StringRef& other) noexcept;

 public:  // operators
  auto operator==(StringRef const& other) const noexcept -> bool;
  auto operator!=(StringRef const& other) const noexcept -> bool;

  auto operator[](size_type index) const noexcept -> char;

 public:  // named queries
  auto empty() const noexcept -> bool { return m_size == 0; }
  auto size() const noexcept -> size_type { return m_size; }

  auto numberOfCharacters() const noexcept -> size_type;
  auto c_str() const -> char const*;

 public:  // substrings and searches
  auto substr(size_type start, size_type size) const noexcept -> StringRef;

  // Returns the current start pointer.
  // Note that the pointer can change when if the StringRef is a substring
  auto currentData() const noexcept -> char const*;

 private:  // ownership queries - may not be consistent between calls
  auto isOwned() const noexcept -> bool;
  auto isSubstring() const noexcept -> bool;
};

auto operator+(StringRef const& lhs, StringRef const& rhs) -> std::string;
auto operator+(StringRef const& lhs, char const* rhs) -> std::string;
auto operator+(char const* lhs, StringRef const& rhs) -> std::string;

auto operator+=(std::string& lhs, StringRef const& sr) -> std::string&;
auto operator<<(std::ostream& os, StringRef const& sr) -> std::ostream&;

inline auto operator"" _sr(char const* rawChars, std::size_t size) noexcept
    -> StringRef {
  return StringRef(rawChars, size);
}

}  // namespace Catch

inline auto operator"" _catch_sr(char const* rawChars,
                                 std::size_t size) noexcept
    -> Catch::StringRef {
  return Catch::StringRef(rawChars, size);
}

// end catch_stringref.h
// start catch_type_traits.hpp

namespace Catch {

#ifdef CATCH_CPP17_OR_GREATER
template <typename...>
inline constexpr auto is_unique = std::true_type{};

template <typename T, typename... Rest>
inline constexpr auto is_unique<T, Rest...> =
    std::bool_constant<(!std::is_same_v<T, Rest> && ...) &&
                       is_unique<Rest...>>{};
#else

template <typename...>
struct is_unique : std::true_type {};

template <typename T0, typename T1, typename... Rest>
struct is_unique<T0, T1, Rest...>
    : std::integral_constant<bool, !std::is_same<T0, T1>::value &&
                                       is_unique<T0, Rest...>::value &&
                                       is_unique<T1, Rest...>::value> {};

#endif
}  // namespace Catch

// end catch_type_traits.hpp
// start catch_preprocessor.hpp

#define CATCH_RECURSION_LEVEL0(...) __VA_ARGS__
#define CATCH_RECURSION_LEVEL1(...) \
  CATCH_RECURSION_LEVEL0(           \
      CATCH_RECURSION_LEVEL0(CATCH_RECURSION_LEVEL0(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL2(...) \
  CATCH_RECURSION_LEVEL1(           \
      CATCH_RECURSION_LEVEL1(CATCH_RECURSION_LEVEL1(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL3(...) \
  CATCH_RECURSION_LEVEL2(           \
      CATCH_RECURSION_LEVEL2(CATCH_RECURSION_LEVEL2(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL4(...) \
  CATCH_RECURSION_LEVEL3(           \
      CATCH_RECURSION_LEVEL3(CATCH_RECURSION_LEVEL3(__VA_ARGS__)))
#define CATCH_RECURSION_LEVEL5(...) \
  CATCH_RECURSION_LEVEL4(           \
      CATCH_RECURSION_LEVEL4(CATCH_RECURSION_LEVEL4(__VA_ARGS__)))

#ifdef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_EXPAND_VARGS(...) __VA_ARGS__
// MSVC needs more evaluations
#define CATCH_RECURSION_LEVEL6(...) \
  CATCH_RECURSION_LEVEL5(           \
      CATCH_RECURSION_LEVEL5(CATCH_RECURSION_LEVEL5(__VA_ARGS__)))
#define CATCH_RECURSE(...) \
  CATCH_RECURSION_LEVEL6(CATCH_RECURSION_LEVEL6(__VA_ARGS__))
#else
#define CATCH_RECURSE(...) CATCH_RECURSION_LEVEL5(__VA_ARGS__)
#endif

#define CATCH_REC_END(...)
#define CATCH_REC_OUT

#define CATCH_EMPTY()
#define CATCH_DEFER(id) id CATCH_EMPTY()

#define CATCH_REC_GET_END2() 0, CATCH_REC_END
#define CATCH_REC_GET_END1(...) CATCH_REC_GET_END2
#define CATCH_REC_GET_END(...) CATCH_REC_GET_END1
#define CATCH_REC_NEXT0(test, next, ...) next CATCH_REC_OUT
#define CATCH_REC_NEXT1(test, next) CATCH_DEFER(CATCH_REC_NEXT0)(test, next, 0)
#define CATCH_REC_NEXT(test, next) CATCH_REC_NEXT1(CATCH_REC_GET_END test, next)

#define CATCH_REC_LIST0(f, x, peek, ...)                             \
  , f(x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1))(f, peek, \
                                                            __VA_ARGS__)
#define CATCH_REC_LIST1(f, x, peek, ...)                             \
  , f(x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST0))(f, peek, \
                                                            __VA_ARGS__)
#define CATCH_REC_LIST2(f, x, peek, ...) \
  f(x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1))(f, peek, __VA_ARGS__)

#define CATCH_REC_LIST0_UD(f, userdata, x, peek, ...)                     \
  , f(userdata, x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD))( \
        f, userdata, peek, __VA_ARGS__)
#define CATCH_REC_LIST1_UD(f, userdata, x, peek, ...)                     \
  , f(userdata, x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST0_UD))( \
        f, userdata, peek, __VA_ARGS__)
#define CATCH_REC_LIST2_UD(f, userdata, x, peek, ...)                   \
  f(userdata, x) CATCH_DEFER(CATCH_REC_NEXT(peek, CATCH_REC_LIST1_UD))( \
      f, userdata, peek, __VA_ARGS__)

// Applies the function macro `f` to each of the remaining parameters, inserts
// commas between the results, and passes userdata as the first parameter to
// each invocation, e.g. CATCH_REC_LIST_UD(f, x, a, b, c) evaluates to f(x, a),
// f(x, b), f(x, c)
#define CATCH_REC_LIST_UD(f, userdata, ...) \
  CATCH_RECURSE(                            \
      CATCH_REC_LIST2_UD(f, userdata, __VA_ARGS__, ()()(), ()()(), ()()(), 0))

#define CATCH_REC_LIST(f, ...) \
  CATCH_RECURSE(CATCH_REC_LIST2(f, __VA_ARGS__, ()()(), ()()(), ()()(), 0))

#define INTERNAL_CATCH_EXPAND1(param) INTERNAL_CATCH_EXPAND2(param)
#define INTERNAL_CATCH_EXPAND2(...) INTERNAL_CATCH_NO##__VA_ARGS__
#define INTERNAL_CATCH_DEF(...) INTERNAL_CATCH_DEF __VA_ARGS__
#define INTERNAL_CATCH_NOINTERNAL_CATCH_DEF

#define INTERNAL_CATCH_REMOVE_PARENS(...) \
  INTERNAL_CATCH_EXPAND1(INTERNAL_CATCH_DEF __VA_ARGS__)

#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME2(Name, ...) \
  INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME3(Name, __VA_ARGS__)
#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME3(Name, ...) Name " - " #__VA_ARGS__
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME(Name, ...) \
  INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME2(                \
      Name, INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__))
#else
// MSVC is adding extra space and needs more calls to properly remove ()
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME3(Name, ...) Name " -" #__VA_ARGS__
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME1(Name, ...) \
  INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME2(Name, __VA_ARGS__)
#define INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME(Name, ...) \
  INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME1(                \
      Name,                                            \
      INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_REMOVE_PARENS(__VA_ARGS__)))
#endif

// end catch_preprocessor.hpp
namespace Catch {

template <typename C>
class TestInvokerAsMethod : public ITestInvoker {
  void (C::*m_testAsMethod)();

 public:
  TestInvokerAsMethod(void (C::*testAsMethod)()) noexcept
      : m_testAsMethod(testAsMethod) {}

  void invoke() const override {
    C obj;
    (obj.*m_testAsMethod)();
  }
};

auto makeTestInvoker(void (*testAsFunction)()) noexcept -> ITestInvoker*;

template <typename C>
auto makeTestInvoker(void (C::*testAsMethod)()) noexcept -> ITestInvoker* {
  return new (std::nothrow) TestInvokerAsMethod<C>(testAsMethod);
}

struct NameAndTags {
  NameAndTags(StringRef const& name_ = StringRef(),
              StringRef const& tags_ = StringRef()) noexcept;
  StringRef name;
  StringRef tags;
};

struct AutoReg : NonCopyable {
  AutoReg(ITestInvoker* invoker, SourceLineInfo const& lineInfo,
          StringRef const& classOrMethod,
          NameAndTags const& nameAndTags) noexcept;
  ~AutoReg();
};

}  // end namespace Catch

#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(TestName, ...) \
  static void TestName()
#define INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION(TestName, ClassName, \
                                                       ...)                 \
  namespace {                                                               \
  struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) {               \
    void test();                                                            \
  };                                                                        \
  }                                                                         \
  void TestName::test()
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION(TestName, ...) \
  template <typename TestType>                                           \
  static void TestName()
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION(       \
    TestName, ClassName, ...)                                           \
  namespace {                                                           \
  template <typename TestType>                                          \
  struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName<TestType>) { \
    void test();                                                        \
  };                                                                    \
  }                                                                     \
  template <typename TestType>                                          \
  void TestName::test()
#endif

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TESTCASE2(TestName, ...)                   \
  static void TestName();                                         \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                        \
  namespace {                                                     \
  Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(       \
      Catch::makeTestInvoker(&TestName), CATCH_INTERNAL_LINEINFO, \
      Catch::StringRef(), Catch::NameAndTags{__VA_ARGS__});       \
  } /* NOLINT */                                                  \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                      \
  static void TestName()
#define INTERNAL_CATCH_TESTCASE(...) \
  INTERNAL_CATCH_TESTCASE2(          \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), __VA_ARGS__)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_METHOD_AS_TEST_CASE(QualifiedMethod, ...)         \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                               \
  namespace {                                                            \
  Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(              \
      Catch::makeTestInvoker(&QualifiedMethod), CATCH_INTERNAL_LINEINFO, \
      "&" #QualifiedMethod, Catch::NameAndTags{__VA_ARGS__});            \
  } /* NOLINT */                                                         \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST_CASE_METHOD2(TestName, ClassName, ...)      \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                              \
  namespace {                                                           \
  struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName) {           \
    void test();                                                        \
  };                                                                    \
  Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(             \
      Catch::makeTestInvoker(&TestName::test), CATCH_INTERNAL_LINEINFO, \
      #ClassName, Catch::NameAndTags{__VA_ARGS__}); /* NOLINT */        \
  }                                                                     \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                            \
  void TestName::test()
#define INTERNAL_CATCH_TEST_CASE_METHOD(ClassName, ...)                    \
  INTERNAL_CATCH_TEST_CASE_METHOD2(                                        \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), ClassName, \
      __VA_ARGS__)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_REGISTER_TESTCASE(Function, ...)                  \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                               \
  Catch::AutoReg INTERNAL_CATCH_UNIQUE_NAME(autoRegistrar)(              \
      Catch::makeTestInvoker(Function), CATCH_INTERNAL_LINEINFO,         \
      Catch::StringRef(), Catch::NameAndTags{__VA_ARGS__}); /* NOLINT */ \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(TestName, TestFunc, Name, Tags, \
                                            ...)                            \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                  \
  template <typename TestType>                                              \
  static void TestFunc();                                                   \
  namespace {                                                               \
  template <typename... Types>                                              \
  struct TestName {                                                         \
    template <typename... Ts>                                               \
    TestName(Ts... names) {                                                 \
      CATCH_INTERNAL_CHECK_UNIQUE_TYPES(                                    \
          CATCH_REC_LIST(INTERNAL_CATCH_REMOVE_PARENS, __VA_ARGS__))        \
      using expander = int[];                                               \
      (void)expander{                                                       \
          (Catch::AutoReg(Catch::makeTestInvoker(&TestFunc<Types>),         \
                          CATCH_INTERNAL_LINEINFO, Catch::StringRef(),      \
                          Catch::NameAndTags{names, Tags}),                 \
           0)...}; /* NOLINT */                                             \
    }                                                                       \
  };                                                                        \
  INTERNAL_CATCH_TEMPLATE_REGISTRY_INITIATE(TestName, Name, __VA_ARGS__)    \
  }                                                                         \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                                \
  template <typename TestType>                                              \
  static void TestFunc()

#if defined(CATCH_CPP17_OR_GREATER)
#define CATCH_INTERNAL_CHECK_UNIQUE_TYPES(...) \
  static_assert(                               \
      Catch::is_unique<__VA_ARGS__>,           \
      "Duplicate type detected in declaration of template test case");
#else
#define CATCH_INTERNAL_CHECK_UNIQUE_TYPES(...) \
  static_assert(                               \
      Catch::is_unique<__VA_ARGS__>::value,    \
      "Duplicate type detected in declaration of template test case");
#endif

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...)             \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(                                 \
      INTERNAL_CATCH_UNIQUE_NAME(                                      \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
      INTERNAL_CATCH_UNIQUE_NAME(                                      \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
      Name, Tags, __VA_ARGS__)
#else
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE(Name, Tags, ...)             \
  INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_2(     \
      INTERNAL_CATCH_UNIQUE_NAME(                                      \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),            \
      INTERNAL_CATCH_UNIQUE_NAME(                                      \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____F_U_N_C____), \
      Name, Tags, __VA_ARGS__))
#endif

#define INTERNAL_CATCH_TEMPLATE_REGISTRY_INITIATE(TestName, Name, ...)   \
  static int INTERNAL_CATCH_UNIQUE_NAME(globalRegistrar) = []() {        \
    TestName<CATCH_REC_LIST(INTERNAL_CATCH_REMOVE_PARENS, __VA_ARGS__)>( \
        CATCH_REC_LIST_UD(INTERNAL_CATCH_TEMPLATE_UNIQUE_NAME, Name,     \
                          __VA_ARGS__));                                 \
    return 0;                                                            \
  }();

#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(TestNameClass, TestName,    \
                                                   ClassName, Name, Tags, ...) \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                                     \
  namespace {                                                                  \
  template <typename TestType>                                                 \
  struct TestName : INTERNAL_CATCH_REMOVE_PARENS(ClassName<TestType>) {        \
    void test();                                                               \
  };                                                                           \
  template <typename... Types>                                                 \
  struct TestNameClass {                                                       \
    template <typename... Ts>                                                  \
    TestNameClass(Ts... names) {                                               \
      CATCH_INTERNAL_CHECK_UNIQUE_TYPES(                                       \
          CATCH_REC_LIST(INTERNAL_CATCH_REMOVE_PARENS, __VA_ARGS__))           \
      using expander = int[];                                                  \
      (void)expander{                                                          \
          (Catch::AutoReg(Catch::makeTestInvoker(&TestName<Types>::test),      \
                          CATCH_INTERNAL_LINEINFO, #ClassName,                 \
                          Catch::NameAndTags{names, Tags}),                    \
           0)...}; /* NOLINT */                                                \
    }                                                                          \
  };                                                                           \
  INTERNAL_CATCH_TEMPLATE_REGISTRY_INITIATE(TestNameClass, Name, __VA_ARGS__)  \
  }                                                                            \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                                   \
  template <typename TestType>                                                 \
  void TestName<TestType>::test()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(ClassName, Name, Tags, ...) \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(                                \
      INTERNAL_CATCH_UNIQUE_NAME(                                            \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____),     \
      INTERNAL_CATCH_UNIQUE_NAME(                                            \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
      ClassName, Name, Tags, __VA_ARGS__)
#else
#define INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(ClassName, Name, Tags, ...) \
  INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_2(    \
      INTERNAL_CATCH_UNIQUE_NAME(                                            \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____C_L_A_S_S____),     \
      INTERNAL_CATCH_UNIQUE_NAME(                                            \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____),                  \
      ClassName, Name, Tags, __VA_ARGS__))
#endif

// end catch_test_registry.h
// start catch_capture.hpp

// start catch_assertionhandler.h

// start catch_assertioninfo.h

// start catch_result_type.h

namespace Catch {

// ResultWas::OfType enum
struct ResultWas {
  enum OfType {
    Unknown = -1,
    Ok = 0,
    Info = 1,
    Warning = 2,

    FailureBit = 0x10,

    ExpressionFailed = FailureBit | 1,
    ExplicitFailure = FailureBit | 2,

    Exception = 0x100 | FailureBit,

    ThrewException = Exception | 1,
    DidntThrowException = Exception | 2,

    FatalErrorCondition = 0x200 | FailureBit

  };
};

bool isOk(ResultWas::OfType resultType);
bool isJustInfo(int flags);

// ResultDisposition::Flags enum
struct ResultDisposition {
  enum Flags {
    Normal = 0x01,

    ContinueOnFailure = 0x02,  // Failures fail test, but execution continues
    FalseTest = 0x04,          // Prefix expression with !
    SuppressFail = 0x08        // Failures are reported but do not fail the test
  };
};

ResultDisposition::Flags operator|(ResultDisposition::Flags lhs,
                                   ResultDisposition::Flags rhs);

bool shouldContinueOnFailure(int flags);
inline bool isFalseTest(int flags) {
  return (flags & ResultDisposition::FalseTest) != 0;
}
bool shouldSuppressFailure(int flags);

}  // end namespace Catch

// end catch_result_type.h
namespace Catch {

struct AssertionInfo {
  StringRef macroName;
  SourceLineInfo lineInfo;
  StringRef capturedExpression;
  ResultDisposition::Flags resultDisposition;

  // We want to delete this constructor but a compiler bug in 4.8 means
  // the struct is then treated as non-aggregate
  // AssertionInfo() = delete;
};

}  // end namespace Catch

// end catch_assertioninfo.h
// start catch_decomposer.h

// start catch_tostring.h

#include <cstddef>
#include <string>
#include <type_traits>
#include <vector>
// start catch_stream.h

#include <cstddef>
#include <iosfwd>
#include <ostream>

namespace Catch {

std::ostream& cout();
std::ostream& cerr();
std::ostream& clog();

class StringRef;

struct IStream {
  virtual ~IStream();
  virtual std::ostream& stream() const = 0;
};

auto makeStream(StringRef const& filename) -> IStream const*;

class ReusableStringStream {
  std::size_t m_index;
  std::ostream* m_oss;

 public:
  ReusableStringStream();
  ~ReusableStringStream();

  auto str() const -> std::string;

  template <typename T>
  auto operator<<(T const& value) -> ReusableStringStream& {
    *m_oss << value;
    return *this;
  }
  auto get() -> std::ostream& { return *m_oss; }
};
}  // namespace Catch

// end catch_stream.h

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
#include <string_view>
#endif

#ifdef __OBJC__
// start catch_objc_arc.hpp

#import <Foundation/Foundation.h>

#ifdef __has_feature
#define CATCH_ARC_ENABLED __has_feature(objc_arc)
#else
#define CATCH_ARC_ENABLED 0
#endif

void arcSafeRelease(NSObject* obj);
id performOptionalSelector(id obj, SEL sel);

#if !CATCH_ARC_ENABLED
inline void arcSafeRelease(NSObject* obj) { [obj release]; }
inline id performOptionalSelector(id obj, SEL sel) {
  if ([obj respondsToSelector:sel]) return [obj performSelector:sel];
  return nil;
}
#define CATCH_UNSAFE_UNRETAINED
#define CATCH_ARC_STRONG
#else
inline void arcSafeRelease(NSObject*) {}
inline id performOptionalSelector(id obj, SEL sel) {
#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Warc-performSelector-leaks"
#endif
  if ([obj respondsToSelector:sel]) return [obj performSelector:sel];
#ifdef __clang__
#pragma clang diagnostic pop
#endif
  return nil;
}
#define CATCH_UNSAFE_UNRETAINED __unsafe_unretained
#define CATCH_ARC_STRONG __strong
#endif

// end catch_objc_arc.hpp
#endif

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning( \
    disable : 4180)  // We attempt to stream a function (address) by const&,
                     // which MSVC complains about but is harmless
#endif

namespace Catch {
namespace Detail {

extern const std::string unprintableString;

std::string rawMemoryToString(const void* object, std::size_t size);

template <typename T>
std::string rawMemoryToString(const T& object) {
  return rawMemoryToString(&object, sizeof(object));
}

template <typename T>
class IsStreamInsertable {
  template <typename SS, typename TT>
  static auto test(int)
      -> decltype(std::declval<SS&>() << std::declval<TT>(), std::true_type());

  template <typename, typename>
  static auto test(...) -> std::false_type;

 public:
  static const bool value = decltype(test<std::ostream, const T&>(0))::value;
};

template <typename E>
std::string convertUnknownEnumToString(E e);

template <typename T>
typename std::enable_if<!std::is_enum<T>::value &&
                            !std::is_base_of<std::exception, T>::value,
                        std::string>::type
convertUnstreamable(T const&) {
  return Detail::unprintableString;
}
template <typename T>
typename std::enable_if<!std::is_enum<T>::value &&
                            std::is_base_of<std::exception, T>::value,
                        std::string>::type
convertUnstreamable(T const& ex) {
  return ex.what();
}

template <typename T>
typename std::enable_if<std::is_enum<T>::value, std::string>::type
convertUnstreamable(T const& value) {
  return convertUnknownEnumToString(value);
}

#if defined(_MANAGED)
//! Convert a CLR string to a utf8 std::string
template <typename T>
std::string clrReferenceToString(T ^ ref) {
  if (ref == nullptr) return std::string("null");
  auto bytes = System::Text::Encoding::UTF8->GetBytes(ref->ToString());
  cli::pin_ptr<System::Byte> p = &bytes[0];
  return std::string(reinterpret_cast<char const*>(p), bytes->Length);
}
#endif

}  // namespace Detail

// If we decide for C++14, change these to enable_if_ts
template <typename T, typename = void>
struct StringMaker {
  template <typename Fake = T>
  static
      typename std::enable_if<::Catch::Detail::IsStreamInsertable<Fake>::value,
                              std::string>::type
      convert(const Fake& value) {
    ReusableStringStream rss;
    // NB: call using the function-like syntax to avoid ambiguity with
    // user-defined templated operator<< under clang.
    rss.operator<<(value);
    return rss.str();
  }

  template <typename Fake = T>
  static
      typename std::enable_if<!::Catch::Detail::IsStreamInsertable<Fake>::value,
                              std::string>::type
      convert(const Fake& value) {
#if !defined(CATCH_CONFIG_FALLBACK_STRINGIFIER)
    return Detail::convertUnstreamable(value);
#else
    return CATCH_CONFIG_FALLBACK_STRINGIFIER(value);
#endif
  }
};

namespace Detail {

// This function dispatches all stringification requests inside of Catch.
// Should be preferably called fully qualified, like ::Catch::Detail::stringify
template <typename T>
std::string stringify(const T& e) {
  return ::Catch::StringMaker<typename std::remove_cv<
      typename std::remove_reference<T>::type>::type>::convert(e);
}

template <typename E>
std::string convertUnknownEnumToString(E e) {
  return ::Catch::Detail::stringify(
      static_cast<typename std::underlying_type<E>::type>(e));
}

#if defined(_MANAGED)
template <typename T>
std::string stringify(T ^ e) {
  return ::Catch::StringMaker<T ^>::convert(e);
}
#endif

}  // namespace Detail

// Some predefined specializations

template <>
struct StringMaker<std::string> {
  static std::string convert(const std::string& str);
};

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
template <>
struct StringMaker<std::string_view> {
  static std::string convert(std::string_view str);
};
#endif

template <>
struct StringMaker<char const*> {
  static std::string convert(char const* str);
};
template <>
struct StringMaker<char*> {
  static std::string convert(char* str);
};

#ifdef CATCH_CONFIG_WCHAR
template <>
struct StringMaker<std::wstring> {
  static std::string convert(const std::wstring& wstr);
};

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
template <>
struct StringMaker<std::wstring_view> {
  static std::string convert(std::wstring_view str);
};
#endif

template <>
struct StringMaker<wchar_t const*> {
  static std::string convert(wchar_t const* str);
};
template <>
struct StringMaker<wchar_t*> {
  static std::string convert(wchar_t* str);
};
#endif

// TBD: Should we use `strnlen` to ensure that we don't go out of the buffer,
//      while keeping string semantics?
template <int SZ>
struct StringMaker<char[SZ]> {
  static std::string convert(char const* str) {
    return ::Catch::Detail::stringify(std::string{str});
  }
};
template <int SZ>
struct StringMaker<signed char[SZ]> {
  static std::string convert(signed char const* str) {
    return ::Catch::Detail::stringify(
        std::string{reinterpret_cast<char const*>(str)});
  }
};
template <int SZ>
struct StringMaker<unsigned char[SZ]> {
  static std::string convert(unsigned char const* str) {
    return ::Catch::Detail::stringify(
        std::string{reinterpret_cast<char const*>(str)});
  }
};

template <>
struct StringMaker<int> {
  static std::string convert(int value);
};
template <>
struct StringMaker<long> {
  static std::string convert(long value);
};
template <>
struct StringMaker<long long> {
  static std::string convert(long long value);
};
template <>
struct StringMaker<unsigned int> {
  static std::string convert(unsigned int value);
};
template <>
struct StringMaker<unsigned long> {
  static std::string convert(unsigned long value);
};
template <>
struct StringMaker<unsigned long long> {
  static std::string convert(unsigned long long value);
};

template <>
struct StringMaker<bool> {
  static std::string convert(bool b);
};

template <>
struct StringMaker<char> {
  static std::string convert(char c);
};
template <>
struct StringMaker<signed char> {
  static std::string convert(signed char c);
};
template <>
struct StringMaker<unsigned char> {
  static std::string convert(unsigned char c);
};

template <>
struct StringMaker<std::nullptr_t> {
  static std::string convert(std::nullptr_t);
};

template <>
struct StringMaker<float> {
  static std::string convert(float value);
};
template <>
struct StringMaker<double> {
  static std::string convert(double value);
};

template <typename T>
struct StringMaker<T*> {
  template <typename U>
  static std::string convert(U* p) {
    if (p) {
      return ::Catch::Detail::rawMemoryToString(p);
    } else {
      return "nullptr";
    }
  }
};

template <typename R, typename C>
struct StringMaker<R C::*> {
  static std::string convert(R C::*p) {
    if (p) {
      return ::Catch::Detail::rawMemoryToString(p);
    } else {
      return "nullptr";
    }
  }
};

#if defined(_MANAGED)
template <typename T>
struct StringMaker<T ^> {
  static std::string convert(T ^ ref) {
    return ::Catch::Detail::clrReferenceToString(ref);
  }
};
#endif

namespace Detail {
template <typename InputIterator>
std::string rangeToString(InputIterator first, InputIterator last) {
  ReusableStringStream rss;
  rss << "{ ";
  if (first != last) {
    rss << ::Catch::Detail::stringify(*first);
    for (++first; first != last; ++first)
      rss << ", " << ::Catch::Detail::stringify(*first);
  }
  rss << " }";
  return rss.str();
}
}  // namespace Detail

#ifdef __OBJC__
template <>
struct StringMaker<NSString*> {
  static std::string convert(NSString* nsstring) {
    if (!nsstring) return "nil";
    return std::string("@") + [nsstring UTF8String];
  }
};
template <>
struct StringMaker<NSObject*> {
  static std::string convert(NSObject* nsObject) {
    return ::Catch::Detail::stringify([nsObject description]);
  }
};
namespace Detail {
inline std::string stringify(NSString* nsstring) {
  return StringMaker<NSString*>::convert(nsstring);
}

}  // namespace Detail
#endif  // __OBJC__

}  // namespace Catch

//////////////////////////////////////////////////////
// Separate std-lib types stringification, so it can be selectively enabled
// This means that we do not bring in

#if defined(CATCH_CONFIG_ENABLE_ALL_STRINGMAKERS)
#define CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER
#define CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER
#define CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

// Separate std::pair specialization
#if defined(CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER)
#include <utility>
namespace Catch {
template <typename T1, typename T2>
struct StringMaker<std::pair<T1, T2>> {
  static std::string convert(const std::pair<T1, T2>& pair) {
    ReusableStringStream rss;
    rss << "{ " << ::Catch::Detail::stringify(pair.first) << ", "
        << ::Catch::Detail::stringify(pair.second) << " }";
    return rss.str();
  }
};
}  // namespace Catch
#endif  // CATCH_CONFIG_ENABLE_PAIR_STRINGMAKER

// Separate std::tuple specialization
#if defined(CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER)
#include <tuple>
namespace Catch {
namespace Detail {
template <typename Tuple, std::size_t N = 0,
          bool = (N < std::tuple_size<Tuple>::value)>
struct TupleElementPrinter {
  static void print(const Tuple& tuple, std::ostream& os) {
    os << (N ? ", " : " ") << ::Catch::Detail::stringify(std::get<N>(tuple));
    TupleElementPrinter<Tuple, N + 1>::print(tuple, os);
  }
};

template <typename Tuple, std::size_t N>
struct TupleElementPrinter<Tuple, N, false> {
  static void print(const Tuple&, std::ostream&) {}
};

}  // namespace Detail

template <typename... Types>
struct StringMaker<std::tuple<Types...>> {
  static std::string convert(const std::tuple<Types...>& tuple) {
    ReusableStringStream rss;
    rss << '{';
    Detail::TupleElementPrinter<std::tuple<Types...>>::print(tuple, rss.get());
    rss << " }";
    return rss.str();
  }
};
}  // namespace Catch
#endif  // CATCH_CONFIG_ENABLE_TUPLE_STRINGMAKER

#if defined(CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER) && \
    defined(CATCH_CONFIG_CPP17_VARIANT)
#include <variant>
namespace Catch {
template <>
struct StringMaker<std::monostate> {
  static std::string convert(const std::monostate&) { return "{ }"; }
};

template <typename... Elements>
struct StringMaker<std::variant<Elements...>> {
  static std::string convert(const std::variant<Elements...>& variant) {
    if (variant.valueless_by_exception()) {
      return "{valueless variant}";
    } else {
      return std::visit(
          [](const auto& value) { return ::Catch::Detail::stringify(value); },
          variant);
    }
  }
};
}  // namespace Catch
#endif  // CATCH_CONFIG_ENABLE_VARIANT_STRINGMAKER

namespace Catch {
struct not_this_one {
};  // Tag type for detecting which begin/ end are being selected

// Import begin/ end from std here so they are considered alongside the fallback
// (...) overloads in this namespace
using std::begin;
using std::end;

not_this_one begin(...);
not_this_one end(...);

template <typename T>
struct is_range {
  static const bool value =
      !std::is_same<decltype(begin(std::declval<T>())), not_this_one>::value &&
      !std::is_same<decltype(end(std::declval<T>())), not_this_one>::value;
};

#if defined(_MANAGED)  // Managed types are never ranges
template <typename T>
struct is_range<T ^> {
  static const bool value = false;
};
#endif

template <typename Range>
std::string rangeToString(Range const& range) {
  return ::Catch::Detail::rangeToString(begin(range), end(range));
}

// Handle vector<bool> specially
template <typename Allocator>
std::string rangeToString(std::vector<bool, Allocator> const& v) {
  ReusableStringStream rss;
  rss << "{ ";
  bool first = true;
  for (bool b : v) {
    if (first)
      first = false;
    else
      rss << ", ";
    rss << ::Catch::Detail::stringify(b);
  }
  rss << " }";
  return rss.str();
}

template <typename R>
struct StringMaker<R,
                   typename std::enable_if<
                       is_range<R>::value &&
                       !::Catch::Detail::IsStreamInsertable<R>::value>::type> {
  static std::string convert(R const& range) { return rangeToString(range); }
};

template <typename T, int SZ>
struct StringMaker<T[SZ]> {
  static std::string convert(T const (&arr)[SZ]) { return rangeToString(arr); }
};

}  // namespace Catch

// Separate std::chrono::duration specialization
#if defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#include <chrono>
#include <ctime>
#include <ratio>

namespace Catch {

template <class Ratio>
struct ratio_string {
  static std::string symbol();
};

template <class Ratio>
std::string ratio_string<Ratio>::symbol() {
  Catch::ReusableStringStream rss;
  rss << '[' << Ratio::num << '/' << Ratio::den << ']';
  return rss.str();
}
template <>
struct ratio_string<std::atto> {
  static std::string symbol();
};
template <>
struct ratio_string<std::femto> {
  static std::string symbol();
};
template <>
struct ratio_string<std::pico> {
  static std::string symbol();
};
template <>
struct ratio_string<std::nano> {
  static std::string symbol();
};
template <>
struct ratio_string<std::micro> {
  static std::string symbol();
};
template <>
struct ratio_string<std::milli> {
  static std::string symbol();
};

////////////
// std::chrono::duration specializations
template <typename Value, typename Ratio>
struct StringMaker<std::chrono::duration<Value, Ratio>> {
  static std::string convert(
      std::chrono::duration<Value, Ratio> const& duration) {
    ReusableStringStream rss;
    rss << duration.count() << ' ' << ratio_string<Ratio>::symbol() << 's';
    return rss.str();
  }
};
template <typename Value>
struct StringMaker<std::chrono::duration<Value, std::ratio<1>>> {
  static std::string convert(
      std::chrono::duration<Value, std::ratio<1>> const& duration) {
    ReusableStringStream rss;
    rss << duration.count() << " s";
    return rss.str();
  }
};
template <typename Value>
struct StringMaker<std::chrono::duration<Value, std::ratio<60>>> {
  static std::string convert(
      std::chrono::duration<Value, std::ratio<60>> const& duration) {
    ReusableStringStream rss;
    rss << duration.count() << " m";
    return rss.str();
  }
};
template <typename Value>
struct StringMaker<std::chrono::duration<Value, std::ratio<3600>>> {
  static std::string convert(
      std::chrono::duration<Value, std::ratio<3600>> const& duration) {
    ReusableStringStream rss;
    rss << duration.count() << " h";
    return rss.str();
  }
};

////////////
// std::chrono::time_point specialization
// Generic time_point cannot be specialized, only
// std::chrono::time_point<system_clock>
template <typename Clock, typename Duration>
struct StringMaker<std::chrono::time_point<Clock, Duration>> {
  static std::string convert(
      std::chrono::time_point<Clock, Duration> const& time_point) {
    return ::Catch::Detail::stringify(time_point.time_since_epoch()) +
           " since epoch";
  }
};
// std::chrono::time_point<system_clock> specialization
template <typename Duration>
struct StringMaker<
    std::chrono::time_point<std::chrono::system_clock, Duration>> {
  static std::string convert(
      std::chrono::time_point<std::chrono::system_clock, Duration> const&
          time_point) {
    auto converted = std::chrono::system_clock::to_time_t(time_point);

#ifdef _MSC_VER
    std::tm timeInfo = {};
    gmtime_s(&timeInfo, &converted);
#else
    std::tm* timeInfo = std::gmtime(&converted);
#endif

    auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");
    char timeStamp[timeStampSize];
    const char* const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
    std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
    std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
    return std::string(timeStamp);
  }
};
}  // namespace Catch
#endif  // CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// end catch_tostring.h
#include <iosfwd>

#ifdef _MSC_VER
#pragma warning(push)
#pragma warning(disable : 4389)  // '==' : signed/unsigned mismatch
#pragma warning(disable : 4018)  // more "signed/unsigned mismatch"
#pragma warning(disable : 4312)  // Converting int to T* using reinterpret_cast
                                 // (issue on x64 platform)
#pragma warning( \
    disable : 4180)  // qualifier applied to function type has no meaning
#endif

namespace Catch {

struct ITransientExpression {
  auto isBinaryExpression() const -> bool { return m_isBinaryExpression; }
  auto getResult() const -> bool { return m_result; }
  virtual void streamReconstructedExpression(std::ostream& os) const = 0;

  ITransientExpression(bool isBinaryExpression, bool result)
      : m_isBinaryExpression(isBinaryExpression), m_result(result) {}

  // We don't actually need a virtual destructor, but many static analysers
  // complain if it's not here :-(
  virtual ~ITransientExpression();

  bool m_isBinaryExpression;
  bool m_result;
};

void formatReconstructedExpression(std::ostream& os, std::string const& lhs,
                                   StringRef op, std::string const& rhs);

template <typename LhsT, typename RhsT>
class BinaryExpr : public ITransientExpression {
  LhsT m_lhs;
  StringRef m_op;
  RhsT m_rhs;

  void streamReconstructedExpression(std::ostream& os) const override {
    formatReconstructedExpression(os, Catch::Detail::stringify(m_lhs), m_op,
                                  Catch::Detail::stringify(m_rhs));
  }

 public:
  BinaryExpr(bool comparisonResult, LhsT lhs, StringRef op, RhsT rhs)
      : ITransientExpression{true, comparisonResult},
        m_lhs(lhs),
        m_op(op),
        m_rhs(rhs) {}
};

template <typename LhsT>
class UnaryExpr : public ITransientExpression {
  LhsT m_lhs;

  void streamReconstructedExpression(std::ostream& os) const override {
    os << Catch::Detail::stringify(m_lhs);
  }

 public:
  explicit UnaryExpr(LhsT lhs)
      : ITransientExpression{false, lhs ? true : false}, m_lhs(lhs) {}
};

// Specialised comparison functions to handle equality comparisons between ints
// and pointers (NULL deduces as an int)
template <typename LhsT, typename RhsT>
auto compareEqual(LhsT const& lhs, RhsT const& rhs) -> bool {
  return static_cast<bool>(lhs == rhs);
}
template <typename T>
auto compareEqual(T* const& lhs, int rhs) -> bool {
  return lhs == reinterpret_cast<void const*>(rhs);
}
template <typename T>
auto compareEqual(T* const& lhs, long rhs) -> bool {
  return lhs == reinterpret_cast<void const*>(rhs);
}
template <typename T>
auto compareEqual(int lhs, T* const& rhs) -> bool {
  return reinterpret_cast<void const*>(lhs) == rhs;
}
template <typename T>
auto compareEqual(long lhs, T* const& rhs) -> bool {
  return reinterpret_cast<void const*>(lhs) == rhs;
}

template <typename LhsT, typename RhsT>
auto compareNotEqual(LhsT const& lhs, RhsT&& rhs) -> bool {
  return static_cast<bool>(lhs != rhs);
}
template <typename T>
auto compareNotEqual(T* const& lhs, int rhs) -> bool {
  return lhs != reinterpret_cast<void const*>(rhs);
}
template <typename T>
auto compareNotEqual(T* const& lhs, long rhs) -> bool {
  return lhs != reinterpret_cast<void const*>(rhs);
}
template <typename T>
auto compareNotEqual(int lhs, T* const& rhs) -> bool {
  return reinterpret_cast<void const*>(lhs) != rhs;
}
template <typename T>
auto compareNotEqual(long lhs, T* const& rhs) -> bool {
  return reinterpret_cast<void const*>(lhs) != rhs;
}

template <typename LhsT>
class ExprLhs {
  LhsT m_lhs;

 public:
  explicit ExprLhs(LhsT lhs) : m_lhs(lhs) {}

  template <typename RhsT>
  auto operator==(RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
    return {compareEqual(m_lhs, rhs), m_lhs, "==", rhs};
  }
  auto operator==(bool rhs) -> BinaryExpr<LhsT, bool> const {
    return {m_lhs == rhs, m_lhs, "==", rhs};
  }

  template <typename RhsT>
  auto operator!=(RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
    return {compareNotEqual(m_lhs, rhs), m_lhs, "!=", rhs};
  }
  auto operator!=(bool rhs) -> BinaryExpr<LhsT, bool> const {
    return {m_lhs != rhs, m_lhs, "!=", rhs};
  }

  template <typename RhsT>
  auto operator>(RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
    return {static_cast<bool>(m_lhs > rhs), m_lhs, ">", rhs};
  }
  template <typename RhsT>
  auto operator<(RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
    return {static_cast<bool>(m_lhs < rhs), m_lhs, "<", rhs};
  }
  template <typename RhsT>
  auto operator>=(RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
    return {static_cast<bool>(m_lhs >= rhs), m_lhs, ">=", rhs};
  }
  template <typename RhsT>
  auto operator<=(RhsT const& rhs) -> BinaryExpr<LhsT, RhsT const&> const {
    return {static_cast<bool>(m_lhs <= rhs), m_lhs, "<=", rhs};
  }

  auto makeUnaryExpr() const -> UnaryExpr<LhsT> {
    return UnaryExpr<LhsT>{m_lhs};
  }
};

void handleExpression(ITransientExpression const& expr);

template <typename T>
void handleExpression(ExprLhs<T> const& expr) {
  handleExpression(expr.makeUnaryExpr());
}

struct Decomposer {
  template <typename T>
  auto operator<=(T const& lhs) -> ExprLhs<T const&> {
    return ExprLhs<T const&>{lhs};
  }

  auto operator<=(bool value) -> ExprLhs<bool> { return ExprLhs<bool>{value}; }
};

}  // end namespace Catch

#ifdef _MSC_VER
#pragma warning(pop)
#endif

// end catch_decomposer.h
// start catch_interfaces_capture.h

#include <string>

namespace Catch {

class AssertionResult;
struct AssertionInfo;
struct SectionInfo;
struct SectionEndInfo;
struct MessageInfo;
struct Counts;
struct BenchmarkInfo;
struct BenchmarkStats;
struct AssertionReaction;
struct SourceLineInfo;

struct ITransientExpression;
struct IGeneratorTracker;

struct IResultCapture {
  virtual ~IResultCapture();

  virtual bool sectionStarted(SectionInfo const& sectionInfo,
                              Counts& assertions) = 0;
  virtual void sectionEnded(SectionEndInfo const& endInfo) = 0;
  virtual void sectionEndedEarly(SectionEndInfo const& endInfo) = 0;

  virtual auto acquireGeneratorTracker(SourceLineInfo const& lineInfo)
      -> IGeneratorTracker& = 0;

  virtual void benchmarkStarting(BenchmarkInfo const& info) = 0;
  virtual void benchmarkEnded(BenchmarkStats const& stats) = 0;

  virtual void pushScopedMessage(MessageInfo const& message) = 0;
  virtual void popScopedMessage(MessageInfo const& message) = 0;

  virtual void handleFatalErrorCondition(StringRef message) = 0;

  virtual void handleExpr(AssertionInfo const& info,
                          ITransientExpression const& expr,
                          AssertionReaction& reaction) = 0;
  virtual void handleMessage(AssertionInfo const& info,
                             ResultWas::OfType resultType,
                             StringRef const& message,
                             AssertionReaction& reaction) = 0;
  virtual void handleUnexpectedExceptionNotThrown(
      AssertionInfo const& info, AssertionReaction& reaction) = 0;
  virtual void handleUnexpectedInflightException(
      AssertionInfo const& info, std::string const& message,
      AssertionReaction& reaction) = 0;
  virtual void handleIncomplete(AssertionInfo const& info) = 0;
  virtual void handleNonExpr(AssertionInfo const& info,
                             ResultWas::OfType resultType,
                             AssertionReaction& reaction) = 0;

  virtual bool lastAssertionPassed() = 0;
  virtual void assertionPassed() = 0;

  // Deprecated, do not use:
  virtual std::string getCurrentTestName() const = 0;
  virtual const AssertionResult* getLastResult() const = 0;
  virtual void exceptionEarlyReported() = 0;
};

IResultCapture& getResultCapture();
}  // namespace Catch

// end catch_interfaces_capture.h
namespace Catch {

struct TestFailureException {};
struct AssertionResultData;
struct IResultCapture;
class RunContext;

class LazyExpression {
  friend class AssertionHandler;
  friend struct AssertionStats;
  friend class RunContext;

  ITransientExpression const* m_transientExpression = nullptr;
  bool m_isNegated;

 public:
  LazyExpression(bool isNegated);
  LazyExpression(LazyExpression const& other);
  LazyExpression& operator=(LazyExpression const&) = delete;

  explicit operator bool() const;

  friend auto operator<<(std::ostream& os, LazyExpression const& lazyExpr)
      -> std::ostream&;
};

struct AssertionReaction {
  bool shouldDebugBreak = false;
  bool shouldThrow = false;
};

class AssertionHandler {
  AssertionInfo m_assertionInfo;
  AssertionReaction m_reaction;
  bool m_completed = false;
  IResultCapture& m_resultCapture;

 public:
  AssertionHandler(StringRef const& macroName, SourceLineInfo const& lineInfo,
                   StringRef capturedExpression,
                   ResultDisposition::Flags resultDisposition);
  ~AssertionHandler() {
    if (!m_completed) { m_resultCapture.handleIncomplete(m_assertionInfo); }
  }

  template <typename T>
  void handleExpr(ExprLhs<T> const& expr) {
    handleExpr(expr.makeUnaryExpr());
  }
  void handleExpr(ITransientExpression const& expr);

  void handleMessage(ResultWas::OfType resultType, StringRef const& message);

  void handleExceptionThrownAsExpected();
  void handleUnexpectedExceptionNotThrown();
  void handleExceptionNotThrownAsExpected();
  void handleThrowingCallSkipped();
  void handleUnexpectedInflightException();

  void complete();
  void setCompleted();

  // query
  auto allowThrows() const -> bool;
};

void handleExceptionMatchExpr(AssertionHandler& handler, std::string const& str,
                              StringRef const& matcherString);

}  // namespace Catch

// end catch_assertionhandler.h
// start catch_message.h

#include <string>
#include <vector>

namespace Catch {

struct MessageInfo {
  MessageInfo(StringRef const& _macroName, SourceLineInfo const& _lineInfo,
              ResultWas::OfType _type);

  StringRef macroName;
  std::string message;
  SourceLineInfo lineInfo;
  ResultWas::OfType type;
  unsigned int sequence;

  bool operator==(MessageInfo const& other) const;
  bool operator<(MessageInfo const& other) const;

 private:
  static unsigned int globalCount;
};

struct MessageStream {
  template <typename T>
  MessageStream& operator<<(T const& value) {
    m_stream << value;
    return *this;
  }

  ReusableStringStream m_stream;
};

struct MessageBuilder : MessageStream {
  MessageBuilder(StringRef const& macroName, SourceLineInfo const& lineInfo,
                 ResultWas::OfType type);

  template <typename T>
  MessageBuilder& operator<<(T const& value) {
    m_stream << value;
    return *this;
  }

  MessageInfo m_info;
};

class ScopedMessage {
 public:
  explicit ScopedMessage(MessageBuilder const& builder);
  ~ScopedMessage();

  MessageInfo m_info;
};

class Capturer {
  std::vector<MessageInfo> m_messages;
  IResultCapture& m_resultCapture = getResultCapture();
  size_t m_captured = 0;

 public:
  Capturer(StringRef macroName, SourceLineInfo const& lineInfo,
           ResultWas::OfType resultType, StringRef names);
  ~Capturer();

  void captureValue(size_t index, std::string const& value);

  template <typename T>
  void captureValues(size_t index, T const& value) {
    captureValue(index, Catch::Detail::stringify(value));
  }

  template <typename T, typename... Ts>
  void captureValues(size_t index, T const& value, Ts const&... values) {
    captureValue(index, Catch::Detail::stringify(value));
    captureValues(index + 1, values...);
  }
};

}  // end namespace Catch

// end catch_message.h
#if !defined(CATCH_CONFIG_DISABLE)

#if !defined(CATCH_CONFIG_DISABLE_STRINGIFICATION)
#define CATCH_INTERNAL_STRINGIFY(...) #__VA_ARGS__
#else
#define CATCH_INTERNAL_STRINGIFY(...) \
  "Disabled by CATCH_CONFIG_DISABLE_STRINGIFICATION"
#endif

#if defined(CATCH_CONFIG_FAST_COMPILE) || \
    defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)

///////////////////////////////////////////////////////////////////////////////
// Another way to speed-up compilation is to omit local try-catch for REQUIRE*
// macros.
#define INTERNAL_CATCH_TRY
#define INTERNAL_CATCH_CATCH(capturer)

#else  // CATCH_CONFIG_FAST_COMPILE

#define INTERNAL_CATCH_TRY try
#define INTERNAL_CATCH_CATCH(handler)            \
  catch (...) {                                  \
    handler.handleUnexpectedInflightException(); \
  }

#endif

#define INTERNAL_CATCH_REACT(handler) handler.complete();

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TEST(macroName, resultDisposition, ...)              \
  do {                                                                      \
    Catch::AssertionHandler catchAssertionHandler(                          \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                      \
        CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition);          \
    INTERNAL_CATCH_TRY {                                                    \
      CATCH_INTERNAL_SUPPRESS_PARENTHESES_WARNINGS                          \
      catchAssertionHandler.handleExpr(Catch::Decomposer() <= __VA_ARGS__); \
      CATCH_INTERNAL_UNSUPPRESS_PARENTHESES_WARNINGS                        \
    }                                                                       \
    INTERNAL_CATCH_CATCH(catchAssertionHandler)                             \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                             \
  } while ((void)0,                                                         \
           false && static_cast<bool>(                                      \
                        !!(__VA_ARGS__)))  // the expression here is never
                                           // evaluated at runtime but it forces
                                           // the compiler to give it a look
   // The double negation silences MSVC's C4800 warning, the static_cast forces
   // short-circuit evaluation if the type has overloaded &&.

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_IF(macroName, resultDisposition, ...)      \
  INTERNAL_CATCH_TEST(macroName, resultDisposition, __VA_ARGS__); \
  if (Catch::getResultCapture().lastAssertionPassed())

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_ELSE(macroName, resultDisposition, ...)    \
  INTERNAL_CATCH_TEST(macroName, resultDisposition, __VA_ARGS__); \
  if (!Catch::getResultCapture().lastAssertionPassed())

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_NO_THROW(macroName, resultDisposition, ...) \
  do {                                                             \
    Catch::AssertionHandler catchAssertionHandler(                 \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,             \
        CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition); \
    try {                                                          \
      static_cast<void>(__VA_ARGS__);                              \
      catchAssertionHandler.handleExceptionNotThrownAsExpected();  \
    } catch (...) {                                                \
      catchAssertionHandler.handleUnexpectedInflightException();   \
    }                                                              \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                    \
  } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS(macroName, resultDisposition, ...)    \
  do {                                                              \
    Catch::AssertionHandler catchAssertionHandler(                  \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,              \
        CATCH_INTERNAL_STRINGIFY(__VA_ARGS__), resultDisposition);  \
    if (catchAssertionHandler.allowThrows()) try {                  \
        static_cast<void>(__VA_ARGS__);                             \
        catchAssertionHandler.handleUnexpectedExceptionNotThrown(); \
      } catch (...) {                                               \
        catchAssertionHandler.handleExceptionThrownAsExpected();    \
      }                                                             \
    else                                                            \
      catchAssertionHandler.handleThrowingCallSkipped();            \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                     \
  } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_AS(macroName, exceptionType, resultDisposition, \
                                 expr)                                        \
  do {                                                                        \
    Catch::AssertionHandler catchAssertionHandler(                            \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                        \
        CATCH_INTERNAL_STRINGIFY(expr) ", " CATCH_INTERNAL_STRINGIFY(         \
            exceptionType),                                                   \
        resultDisposition);                                                   \
    if (catchAssertionHandler.allowThrows()) try {                            \
        static_cast<void>(expr);                                              \
        catchAssertionHandler.handleUnexpectedExceptionNotThrown();           \
      } catch (exceptionType const&) {                                        \
        catchAssertionHandler.handleExceptionThrownAsExpected();              \
      } catch (...) {                                                         \
        catchAssertionHandler.handleUnexpectedInflightException();            \
      }                                                                       \
    else                                                                      \
      catchAssertionHandler.handleThrowingCallSkipped();                      \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                               \
  } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_MSG(macroName, messageType, resultDisposition, ...) \
  do {                                                                     \
    Catch::AssertionHandler catchAssertionHandler(                         \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, Catch::StringRef(), \
        resultDisposition);                                                \
    catchAssertionHandler.handleMessage(                                   \
        messageType,                                                       \
        (Catch::MessageStream() << __VA_ARGS__ + ::Catch::StreamEndStop()) \
            .m_stream.str());                                              \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                            \
  } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_CAPTURE(varName, macroName, ...)                 \
  auto varName = Catch::Capturer(macroName, CATCH_INTERNAL_LINEINFO,    \
                                 Catch::ResultWas::Info, #__VA_ARGS__); \
  varName.captureValues(0, __VA_ARGS__)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_INFO(macroName, log)                                \
  Catch::ScopedMessage INTERNAL_CATCH_UNIQUE_NAME(scopedMessage)(          \
      Catch::MessageBuilder(macroName##_catch_sr, CATCH_INTERNAL_LINEINFO, \
                            Catch::ResultWas::Info)                        \
      << log);

///////////////////////////////////////////////////////////////////////////////
// Although this is matcher-based, it can be used with just a string
#define INTERNAL_CATCH_THROWS_STR_MATCHES(macroName, resultDisposition,      \
                                          matcher, ...)                      \
  do {                                                                       \
    Catch::AssertionHandler catchAssertionHandler(                           \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                       \
        CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY( \
            matcher),                                                        \
        resultDisposition);                                                  \
    if (catchAssertionHandler.allowThrows()) try {                           \
        static_cast<void>(__VA_ARGS__);                                      \
        catchAssertionHandler.handleUnexpectedExceptionNotThrown();          \
      } catch (...) {                                                        \
        Catch::handleExceptionMatchExpr(catchAssertionHandler, matcher,      \
                                        #matcher##_catch_sr);                \
      }                                                                      \
    else                                                                     \
      catchAssertionHandler.handleThrowingCallSkipped();                     \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                              \
  } while (false)

#endif  // CATCH_CONFIG_DISABLE

// end catch_capture.hpp
// start catch_section.h

// start catch_section_info.h

// start catch_totals.h

#include <cstddef>

namespace Catch {

struct Counts {
  Counts operator-(Counts const& other) const;
  Counts& operator+=(Counts const& other);

  std::size_t total() const;
  bool allPassed() const;
  bool allOk() const;

  std::size_t passed = 0;
  std::size_t failed = 0;
  std::size_t failedButOk = 0;
};

struct Totals {
  Totals operator-(Totals const& other) const;
  Totals& operator+=(Totals const& other);

  Totals delta(Totals const& prevTotals) const;

  int error = 0;
  Counts assertions;
  Counts testCases;
};
}  // namespace Catch

// end catch_totals.h
#include <string>

namespace Catch {

struct SectionInfo {
  SectionInfo(SourceLineInfo const& _lineInfo, std::string const& _name);

  // Deprecated
  SectionInfo(SourceLineInfo const& _lineInfo, std::string const& _name,
              std::string const&)
      : SectionInfo(_lineInfo, _name) {}

  std::string name;
  std::string description;  // !Deprecated: this will always be empty
  SourceLineInfo lineInfo;
};

struct SectionEndInfo {
  SectionInfo sectionInfo;
  Counts prevAssertions;
  double durationInSeconds;
};

}  // end namespace Catch

// end catch_section_info.h
// start catch_timer.h

#include <cstdint>

namespace Catch {

auto getCurrentNanosecondsSinceEpoch() -> uint64_t;
auto getEstimatedClockResolution() -> uint64_t;

class Timer {
  uint64_t m_nanoseconds = 0;

 public:
  void start();
  auto getElapsedNanoseconds() const -> uint64_t;
  auto getElapsedMicroseconds() const -> uint64_t;
  auto getElapsedMilliseconds() const -> unsigned int;
  auto getElapsedSeconds() const -> double;
};

}  // namespace Catch

// end catch_timer.h
#include <string>

namespace Catch {

class Section : NonCopyable {
 public:
  Section(SectionInfo const& info);
  ~Section();

  // This indicates whether the section should be executed or not
  explicit operator bool() const;

 private:
  SectionInfo m_info;

  std::string m_name;
  Counts m_assertions;
  bool m_sectionIncluded;
  Timer m_timer;
};

}  // end namespace Catch

#define INTERNAL_CATCH_SECTION(...)                                 \
  CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS                           \
  if (Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME(             \
          catch_internal_Section) =                                 \
          Catch::SectionInfo(CATCH_INTERNAL_LINEINFO, __VA_ARGS__)) \
  CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS

#define INTERNAL_CATCH_DYNAMIC_SECTION(...)                          \
  CATCH_INTERNAL_SUPPRESS_UNUSED_WARNINGS                            \
  if (Catch::Section const& INTERNAL_CATCH_UNIQUE_NAME(              \
          catch_internal_Section) =                                  \
          Catch::SectionInfo(                                        \
              CATCH_INTERNAL_LINEINFO,                               \
              (Catch::ReusableStringStream() << __VA_ARGS__).str())) \
  CATCH_INTERNAL_UNSUPPRESS_UNUSED_WARNINGS

// end catch_section.h
// start catch_benchmark.h

#include <cstdint>
#include <string>

namespace Catch {

class BenchmarkLooper {
  std::string m_name;
  std::size_t m_count = 0;
  std::size_t m_iterationsToRun = 1;
  uint64_t m_resolution;
  Timer m_timer;

  static auto getResolution() -> uint64_t;

 public:
  // Keep most of this inline as it's on the code path that is being timed
  BenchmarkLooper(StringRef name)
      : m_name(name), m_resolution(getResolution()) {
    reportStart();
    m_timer.start();
  }

  explicit operator bool() {
    if (m_count < m_iterationsToRun) return true;
    return needsMoreIterations();
  }

  void increment() { ++m_count; }

  void reportStart();
  auto needsMoreIterations() -> bool;
};

}  // end namespace Catch

#define BENCHMARK(name) \
  for (Catch::BenchmarkLooper looper(name); looper; looper.increment())

// end catch_benchmark.h
// start catch_interfaces_exception.h

// start catch_interfaces_registry_hub.h

#include <memory>
#include <string>

namespace Catch {

class TestCase;
struct ITestCaseRegistry;
struct IExceptionTranslatorRegistry;
struct IExceptionTranslator;
struct IReporterRegistry;
struct IReporterFactory;
struct ITagAliasRegistry;
class StartupExceptionRegistry;

using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

struct IRegistryHub {
  virtual ~IRegistryHub();

  virtual IReporterRegistry const& getReporterRegistry() const = 0;
  virtual ITestCaseRegistry const& getTestCaseRegistry() const = 0;
  virtual ITagAliasRegistry const& getTagAliasRegistry() const = 0;

  virtual IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry()
      const = 0;

  virtual StartupExceptionRegistry const& getStartupExceptionRegistry()
      const = 0;
};

struct IMutableRegistryHub {
  virtual ~IMutableRegistryHub();
  virtual void registerReporter(std::string const& name,
                                IReporterFactoryPtr const& factory) = 0;
  virtual void registerListener(IReporterFactoryPtr const& factory) = 0;
  virtual void registerTest(TestCase const& testInfo) = 0;
  virtual void registerTranslator(const IExceptionTranslator* translator) = 0;
  virtual void registerTagAlias(std::string const& alias,
                                std::string const& tag,
                                SourceLineInfo const& lineInfo) = 0;
  virtual void registerStartupException() noexcept = 0;
};

IRegistryHub const& getRegistryHub();
IMutableRegistryHub& getMutableRegistryHub();
void cleanUp();
std::string translateActiveException();

}  // namespace Catch

// end catch_interfaces_registry_hub.h
#if defined(CATCH_CONFIG_DISABLE)
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG(translatorName, signature) \
  static std::string translatorName(signature)
#endif

#include <exception>
#include <string>
#include <vector>

namespace Catch {
using exceptionTranslateFunction = std::string (*)();

struct IExceptionTranslator;
using ExceptionTranslators =
    std::vector<std::unique_ptr<IExceptionTranslator const>>;

struct IExceptionTranslator {
  virtual ~IExceptionTranslator();
  virtual std::string translate(
      ExceptionTranslators::const_iterator it,
      ExceptionTranslators::const_iterator itEnd) const = 0;
};

struct IExceptionTranslatorRegistry {
  virtual ~IExceptionTranslatorRegistry();

  virtual std::string translateActiveException() const = 0;
};

class ExceptionTranslatorRegistrar {
  template <typename T>
  class ExceptionTranslator : public IExceptionTranslator {
   public:
    ExceptionTranslator(std::string (*translateFunction)(T&))
        : m_translateFunction(translateFunction) {}

    std::string translate(
        ExceptionTranslators::const_iterator it,
        ExceptionTranslators::const_iterator itEnd) const override {
      try {
        if (it == itEnd)
          std::rethrow_exception(std::current_exception());
        else
          return (*it)->translate(it + 1, itEnd);
      } catch (T& ex) { return m_translateFunction(ex); }
    }

   protected:
    std::string (*m_translateFunction)(T&);
  };

 public:
  template <typename T>
  ExceptionTranslatorRegistrar(std::string (*translateFunction)(T&)) {
    getMutableRegistryHub().registerTranslator(
        new ExceptionTranslator<T>(translateFunction));
  }
};
}  // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_TRANSLATE_EXCEPTION2(translatorName, signature) \
  static std::string translatorName(signature);                        \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS                             \
  namespace {                                                          \
  Catch::ExceptionTranslatorRegistrar INTERNAL_CATCH_UNIQUE_NAME(      \
      catch_internal_ExceptionRegistrar)(&translatorName);             \
  }                                                                    \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS                           \
  static std::string translatorName(signature)

#define INTERNAL_CATCH_TRANSLATE_EXCEPTION(signature)                 \
  INTERNAL_CATCH_TRANSLATE_EXCEPTION2(                                \
      INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionTranslator), \
      signature)

// end catch_interfaces_exception.h
// start catch_approx.h

#include <type_traits>

namespace Catch {
namespace Detail {

class Approx {
 private:
  bool equalityComparisonImpl(double other) const;
  // Validates the new margin (margin >= 0)
  // out-of-line to avoid including stdexcept in the header
  void setMargin(double margin);
  // Validates the new epsilon (0 < epsilon < 1)
  // out-of-line to avoid including stdexcept in the header
  void setEpsilon(double epsilon);

 public:
  explicit Approx(double value);

  static Approx custom();

  Approx operator-() const;

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  Approx operator()(T const& value) {
    Approx approx(static_cast<double>(value));
    approx.m_epsilon = m_epsilon;
    approx.m_margin = m_margin;
    approx.m_scale = m_scale;
    return approx;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  explicit Approx(T const& value) : Approx(static_cast<double>(value)) {}

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator==(const T& lhs, Approx const& rhs) {
    auto lhs_v = static_cast<double>(lhs);
    return rhs.equalityComparisonImpl(lhs_v);
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator==(Approx const& lhs, const T& rhs) {
    return operator==(rhs, lhs);
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator!=(T const& lhs, Approx const& rhs) {
    return !operator==(lhs, rhs);
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator!=(Approx const& lhs, T const& rhs) {
    return !operator==(rhs, lhs);
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator<=(T const& lhs, Approx const& rhs) {
    return static_cast<double>(lhs) < rhs.m_value || lhs == rhs;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator<=(Approx const& lhs, T const& rhs) {
    return lhs.m_value < static_cast<double>(rhs) || lhs == rhs;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator>=(T const& lhs, Approx const& rhs) {
    return static_cast<double>(lhs) > rhs.m_value || lhs == rhs;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  friend bool operator>=(Approx const& lhs, T const& rhs) {
    return lhs.m_value > static_cast<double>(rhs) || lhs == rhs;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  Approx& epsilon(T const& newEpsilon) {
    double epsilonAsDouble = static_cast<double>(newEpsilon);
    setEpsilon(epsilonAsDouble);
    return *this;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  Approx& margin(T const& newMargin) {
    double marginAsDouble = static_cast<double>(newMargin);
    setMargin(marginAsDouble);
    return *this;
  }

  template <typename T, typename = typename std::enable_if<
                            std::is_constructible<double, T>::value>::type>
  Approx& scale(T const& newScale) {
    m_scale = static_cast<double>(newScale);
    return *this;
  }

  std::string toString() const;

 private:
  double m_epsilon;
  double m_margin;
  double m_scale;
  double m_value;
};
}  // end namespace Detail

namespace literals {
Detail::Approx operator"" _a(long double val);
Detail::Approx operator"" _a(unsigned long long val);
}  // end namespace literals

template <>
struct StringMaker<Catch::Detail::Approx> {
  static std::string convert(Catch::Detail::Approx const& value);
};

}  // end namespace Catch

// end catch_approx.h
// start catch_string_manip.h

#include <iosfwd>
#include <string>

namespace Catch {

bool startsWith(std::string const& s, std::string const& prefix);
bool startsWith(std::string const& s, char prefix);
bool endsWith(std::string const& s, std::string const& suffix);
bool endsWith(std::string const& s, char suffix);
bool contains(std::string const& s, std::string const& infix);
void toLowerInPlace(std::string& s);
std::string toLower(std::string const& s);
std::string trim(std::string const& str);
bool replaceInPlace(std::string& str, std::string const& replaceThis,
                    std::string const& withThis);

struct pluralise {
  pluralise(std::size_t count, std::string const& label);

  friend std::ostream& operator<<(std::ostream& os,
                                  pluralise const& pluraliser);

  std::size_t m_count;
  std::string m_label;
};
}  // namespace Catch

// end catch_string_manip.h
#ifndef CATCH_CONFIG_DISABLE_MATCHERS
// start catch_capture_matchers.h

// start catch_matchers.h

#include <string>
#include <vector>

namespace Catch {
namespace Matchers {
namespace Impl {

template <typename ArgT>
struct MatchAllOf;
template <typename ArgT>
struct MatchAnyOf;
template <typename ArgT>
struct MatchNotOf;

class MatcherUntypedBase {
 public:
  MatcherUntypedBase() = default;
  MatcherUntypedBase(MatcherUntypedBase const&) = default;
  MatcherUntypedBase& operator=(MatcherUntypedBase const&) = delete;
  std::string toString() const;

 protected:
  virtual ~MatcherUntypedBase();
  virtual std::string describe() const = 0;
  mutable std::string m_cachedToString;
};

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wnon-virtual-dtor"
#endif

template <typename ObjectT>
struct MatcherMethod {
  virtual bool match(ObjectT const& arg) const = 0;
};

#ifdef __clang__
#pragma clang diagnostic pop
#endif

template <typename T>
struct MatcherBase : MatcherUntypedBase, MatcherMethod<T> {
  MatchAllOf<T> operator&&(MatcherBase const& other) const;
  MatchAnyOf<T> operator||(MatcherBase const& other) const;
  MatchNotOf<T> operator!() const;
};

template <typename ArgT>
struct MatchAllOf : MatcherBase<ArgT> {
  bool match(ArgT const& arg) const override {
    for (auto matcher : m_matchers) {
      if (!matcher->match(arg)) return false;
    }
    return true;
  }
  std::string describe() const override {
    std::string description;
    description.reserve(4 + m_matchers.size() * 32);
    description += "( ";
    bool first = true;
    for (auto matcher : m_matchers) {
      if (first)
        first = false;
      else
        description += " and ";
      description += matcher->toString();
    }
    description += " )";
    return description;
  }

  MatchAllOf<ArgT>& operator&&(MatcherBase<ArgT> const& other) {
    m_matchers.push_back(&other);
    return *this;
  }

  std::vector<MatcherBase<ArgT> const*> m_matchers;
};
template <typename ArgT>
struct MatchAnyOf : MatcherBase<ArgT> {
  bool match(ArgT const& arg) const override {
    for (auto matcher : m_matchers) {
      if (matcher->match(arg)) return true;
    }
    return false;
  }
  std::string describe() const override {
    std::string description;
    description.reserve(4 + m_matchers.size() * 32);
    description += "( ";
    bool first = true;
    for (auto matcher : m_matchers) {
      if (first)
        first = false;
      else
        description += " or ";
      description += matcher->toString();
    }
    description += " )";
    return description;
  }

  MatchAnyOf<ArgT>& operator||(MatcherBase<ArgT> const& other) {
    m_matchers.push_back(&other);
    return *this;
  }

  std::vector<MatcherBase<ArgT> const*> m_matchers;
};

template <typename ArgT>
struct MatchNotOf : MatcherBase<ArgT> {
  MatchNotOf(MatcherBase<ArgT> const& underlyingMatcher)
      : m_underlyingMatcher(underlyingMatcher) {}

  bool match(ArgT const& arg) const override {
    return !m_underlyingMatcher.match(arg);
  }

  std::string describe() const override {
    return "not " + m_underlyingMatcher.toString();
  }
  MatcherBase<ArgT> const& m_underlyingMatcher;
};

template <typename T>
MatchAllOf<T> MatcherBase<T>::operator&&(MatcherBase const& other) const {
  return MatchAllOf<T>() && *this && other;
}
template <typename T>
MatchAnyOf<T> MatcherBase<T>::operator||(MatcherBase const& other) const {
  return MatchAnyOf<T>() || *this || other;
}
template <typename T>
MatchNotOf<T> MatcherBase<T>::operator!() const {
  return MatchNotOf<T>(*this);
}

}  // namespace Impl

}  // namespace Matchers

using namespace Matchers;
using Matchers::Impl::MatcherBase;

}  // namespace Catch

// end catch_matchers.h
// start catch_matchers_floating.h

#include <cmath>
#include <type_traits>

namespace Catch {
namespace Matchers {

namespace Floating {

enum class FloatingPointKind : uint8_t;

struct WithinAbsMatcher : MatcherBase<double> {
  WithinAbsMatcher(double target, double margin);
  bool match(double const& matchee) const override;
  std::string describe() const override;

 private:
  double m_target;
  double m_margin;
};

struct WithinUlpsMatcher : MatcherBase<double> {
  WithinUlpsMatcher(double target, int ulps, FloatingPointKind baseType);
  bool match(double const& matchee) const override;
  std::string describe() const override;

 private:
  double m_target;
  int m_ulps;
  FloatingPointKind m_type;
};

}  // namespace Floating

// The following functions create the actual matcher objects.
// This allows the types to be inferred
Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff);
Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff);
Floating::WithinAbsMatcher WithinAbs(double target, double margin);

}  // namespace Matchers
}  // namespace Catch

// end catch_matchers_floating.h
// start catch_matchers_generic.hpp

#include <functional>
#include <string>

namespace Catch {
namespace Matchers {
namespace Generic {

namespace Detail {
std::string finalizeDescription(const std::string& desc);
}

template <typename T>
class PredicateMatcher : public MatcherBase<T> {
  std::function<bool(T const&)> m_predicate;
  std::string m_description;

 public:
  PredicateMatcher(std::function<bool(T const&)> const& elem,
                   std::string const& descr)
      : m_predicate(std::move(elem)),
        m_description(Detail::finalizeDescription(descr)) {}

  bool match(T const& item) const override { return m_predicate(item); }

  std::string describe() const override { return m_description; }
};

}  // namespace Generic

// The following functions create the actual matcher objects.
// The user has to explicitly specify type to the function, because
// inferring std::function<bool(T const&)> is hard (but possible) and
// requires a lot of TMP.
template <typename T>
Generic::PredicateMatcher<T> Predicate(
    std::function<bool(T const&)> const& predicate,
    std::string const& description = "") {
  return Generic::PredicateMatcher<T>(predicate, description);
}

}  // namespace Matchers
}  // namespace Catch

// end catch_matchers_generic.hpp
// start catch_matchers_string.h

#include <string>

namespace Catch {
namespace Matchers {

namespace StdString {

struct CasedString {
  CasedString(std::string const& str, CaseSensitive::Choice caseSensitivity);
  std::string adjustString(std::string const& str) const;
  std::string caseSensitivitySuffix() const;

  CaseSensitive::Choice m_caseSensitivity;
  std::string m_str;
};

struct StringMatcherBase : MatcherBase<std::string> {
  StringMatcherBase(std::string const& operation,
                    CasedString const& comparator);
  std::string describe() const override;

  CasedString m_comparator;
  std::string m_operation;
};

struct EqualsMatcher : StringMatcherBase {
  EqualsMatcher(CasedString const& comparator);
  bool match(std::string const& source) const override;
};
struct ContainsMatcher : StringMatcherBase {
  ContainsMatcher(CasedString const& comparator);
  bool match(std::string const& source) const override;
};
struct StartsWithMatcher : StringMatcherBase {
  StartsWithMatcher(CasedString const& comparator);
  bool match(std::string const& source) const override;
};
struct EndsWithMatcher : StringMatcherBase {
  EndsWithMatcher(CasedString const& comparator);
  bool match(std::string const& source) const override;
};

struct RegexMatcher : MatcherBase<std::string> {
  RegexMatcher(std::string regex, CaseSensitive::Choice caseSensitivity);
  bool match(std::string const& matchee) const override;
  std::string describe() const override;

 private:
  std::string m_regex;
  CaseSensitive::Choice m_caseSensitivity;
};

}  // namespace StdString

// The following functions create the actual matcher objects.
// This allows the types to be inferred

StdString::EqualsMatcher Equals(
    std::string const& str,
    CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::ContainsMatcher Contains(
    std::string const& str,
    CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::EndsWithMatcher EndsWith(
    std::string const& str,
    CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::StartsWithMatcher StartsWith(
    std::string const& str,
    CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);
StdString::RegexMatcher Matches(
    std::string const& regex,
    CaseSensitive::Choice caseSensitivity = CaseSensitive::Yes);

}  // namespace Matchers
}  // namespace Catch

// end catch_matchers_string.h
// start catch_matchers_vector.h

#include <algorithm>

namespace Catch {
namespace Matchers {

namespace Vector {
namespace Detail {
template <typename InputIterator, typename T>
size_t count(InputIterator first, InputIterator last, T const& item) {
  size_t cnt = 0;
  for (; first != last; ++first) {
    if (*first == item) { ++cnt; }
  }
  return cnt;
}
template <typename InputIterator, typename T>
bool contains(InputIterator first, InputIterator last, T const& item) {
  for (; first != last; ++first) {
    if (*first == item) { return true; }
  }
  return false;
}
}  // namespace Detail

template <typename T>
struct ContainsElementMatcher : MatcherBase<std::vector<T>> {
  ContainsElementMatcher(T const& comparator) : m_comparator(comparator) {}

  bool match(std::vector<T> const& v) const override {
    for (auto const& el : v) {
      if (el == m_comparator) { return true; }
    }
    return false;
  }

  std::string describe() const override {
    return "Contains: " + ::Catch::Detail::stringify(m_comparator);
  }

  T const& m_comparator;
};

template <typename T>
struct ContainsMatcher : MatcherBase<std::vector<T>> {
  ContainsMatcher(std::vector<T> const& comparator)
      : m_comparator(comparator) {}

  bool match(std::vector<T> const& v) const override {
    // !TBD: see note in EqualsMatcher
    if (m_comparator.size() > v.size()) return false;
    for (auto const& comparator : m_comparator) {
      auto present = false;
      for (const auto& el : v) {
        if (el == comparator) {
          present = true;
          break;
        }
      }
      if (!present) { return false; }
    }
    return true;
  }
  std::string describe() const override {
    return "Contains: " + ::Catch::Detail::stringify(m_comparator);
  }

  std::vector<T> const& m_comparator;
};

template <typename T>
struct EqualsMatcher : MatcherBase<std::vector<T>> {
  EqualsMatcher(std::vector<T> const& comparator) : m_comparator(comparator) {}

  bool match(std::vector<T> const& v) const override {
    // !TBD: This currently works if all elements can be compared using !=
    // - a more general approach would be via a compare template that defaults
    // to using !=. but could be specialised for, e.g. std::vector<T> etc
    // - then just call that directly
    if (m_comparator.size() != v.size()) return false;
    for (std::size_t i = 0; i < v.size(); ++i)
      if (m_comparator[i] != v[i]) return false;
    return true;
  }
  std::string describe() const override {
    return "Equals: " + ::Catch::Detail::stringify(m_comparator);
  }
  std::vector<T> const& m_comparator;
};

template <typename T>
struct UnorderedEqualsMatcher : MatcherBase<std::vector<T>> {
  UnorderedEqualsMatcher(std::vector<T> const& target) : m_target(target) {}
  bool match(std::vector<T> const& vec) const override {
    // Note: This is a reimplementation of std::is_permutation,
    //       because I don't want to include <algorithm> inside the common path
    if (m_target.size() != vec.size()) { return false; }
    auto lfirst = m_target.begin(), llast = m_target.end();
    auto rfirst = vec.begin(), rlast = vec.end();
    // Cut common prefix to optimize checking of permuted parts
    while (lfirst != llast && *lfirst == *rfirst) {
      ++lfirst;
      ++rfirst;
    }
    if (lfirst == llast) { return true; }

    for (auto mid = lfirst; mid != llast; ++mid) {
      // Skip already counted items
      if (Detail::contains(lfirst, mid, *mid)) { continue; }
      size_t num_vec = Detail::count(rfirst, rlast, *mid);
      if (num_vec == 0 || Detail::count(lfirst, llast, *mid) != num_vec) {
        return false;
      }
    }

    return true;
  }

  std::string describe() const override {
    return "UnorderedEquals: " + ::Catch::Detail::stringify(m_target);
  }

 private:
  std::vector<T> const& m_target;
};

}  // namespace Vector

// The following functions create the actual matcher objects.
// This allows the types to be inferred

template <typename T>
Vector::ContainsMatcher<T> Contains(std::vector<T> const& comparator) {
  return Vector::ContainsMatcher<T>(comparator);
}

template <typename T>
Vector::ContainsElementMatcher<T> VectorContains(T const& comparator) {
  return Vector::ContainsElementMatcher<T>(comparator);
}

template <typename T>
Vector::EqualsMatcher<T> Equals(std::vector<T> const& comparator) {
  return Vector::EqualsMatcher<T>(comparator);
}

template <typename T>
Vector::UnorderedEqualsMatcher<T> UnorderedEquals(
    std::vector<T> const& target) {
  return Vector::UnorderedEqualsMatcher<T>(target);
}

}  // namespace Matchers
}  // namespace Catch

// end catch_matchers_vector.h
namespace Catch {

template <typename ArgT, typename MatcherT>
class MatchExpr : public ITransientExpression {
  ArgT const& m_arg;
  MatcherT m_matcher;
  StringRef m_matcherString;

 public:
  MatchExpr(ArgT const& arg, MatcherT const& matcher,
            StringRef const& matcherString)
      : ITransientExpression{true, matcher.match(arg)},
        m_arg(arg),
        m_matcher(matcher),
        m_matcherString(matcherString) {}

  void streamReconstructedExpression(std::ostream& os) const override {
    auto matcherAsString = m_matcher.toString();
    os << Catch::Detail::stringify(m_arg) << ' ';
    if (matcherAsString == Detail::unprintableString)
      os << m_matcherString;
    else
      os << matcherAsString;
  }
};

using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

void handleExceptionMatchExpr(AssertionHandler& handler,
                              StringMatcher const& matcher,
                              StringRef const& matcherString);

template <typename ArgT, typename MatcherT>
auto makeMatchExpr(ArgT const& arg, MatcherT const& matcher,
                   StringRef const& matcherString)
    -> MatchExpr<ArgT, MatcherT> {
  return MatchExpr<ArgT, MatcherT>(arg, matcher, matcherString);
}

}  // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CHECK_THAT(macroName, matcher, resultDisposition, arg)       \
  do {                                                                        \
    Catch::AssertionHandler catchAssertionHandler(                            \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                        \
        CATCH_INTERNAL_STRINGIFY(arg) ", " CATCH_INTERNAL_STRINGIFY(matcher), \
        resultDisposition);                                                   \
    INTERNAL_CATCH_TRY {                                                      \
      catchAssertionHandler.handleExpr(                                       \
          Catch::makeMatchExpr(arg, matcher, #matcher##_catch_sr));           \
    }                                                                         \
    INTERNAL_CATCH_CATCH(catchAssertionHandler)                               \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                               \
  } while (false)

///////////////////////////////////////////////////////////////////////////////
#define INTERNAL_CATCH_THROWS_MATCHES(macroName, exceptionType,              \
                                      resultDisposition, matcher, ...)       \
  do {                                                                       \
    Catch::AssertionHandler catchAssertionHandler(                           \
        macroName##_catch_sr, CATCH_INTERNAL_LINEINFO,                       \
        CATCH_INTERNAL_STRINGIFY(__VA_ARGS__) ", " CATCH_INTERNAL_STRINGIFY( \
            exceptionType) ", " CATCH_INTERNAL_STRINGIFY(matcher),           \
        resultDisposition);                                                  \
    if (catchAssertionHandler.allowThrows()) try {                           \
        static_cast<void>(__VA_ARGS__);                                      \
        catchAssertionHandler.handleUnexpectedExceptionNotThrown();          \
      } catch (exceptionType const& ex) {                                    \
        catchAssertionHandler.handleExpr(                                    \
            Catch::makeMatchExpr(ex, matcher, #matcher##_catch_sr));         \
      } catch (...) {                                                        \
        catchAssertionHandler.handleUnexpectedInflightException();           \
      }                                                                      \
    else                                                                     \
      catchAssertionHandler.handleThrowingCallSkipped();                     \
    INTERNAL_CATCH_REACT(catchAssertionHandler)                              \
  } while (false)

// end catch_capture_matchers.h
#endif
// start catch_generators.hpp

// start catch_interfaces_generatortracker.h

#include <memory>

namespace Catch {

namespace Generators {
class GeneratorBase {
 protected:
  size_t m_size = 0;

 public:
  GeneratorBase(size_t size) : m_size(size) {}
  virtual ~GeneratorBase();
  auto size() const -> size_t { return m_size; }
};
using GeneratorBasePtr = std::unique_ptr<GeneratorBase>;

}  // namespace Generators

struct IGeneratorTracker {
  virtual ~IGeneratorTracker();
  virtual auto hasGenerator() const -> bool = 0;
  virtual auto getGenerator() const -> Generators::GeneratorBasePtr const& = 0;
  virtual void setGenerator(Generators::GeneratorBasePtr&& generator) = 0;
  virtual auto getIndex() const -> std::size_t = 0;
};

}  // namespace Catch

// end catch_interfaces_generatortracker.h
// start catch_enforce.h

#include <stdexcept>

namespace Catch {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
template <typename Ex>
[[noreturn]] void throw_exception(Ex const& e) {
  throw e;
}
#else  // ^^ Exceptions are enabled //  Exceptions are disabled vv
[[noreturn]] void throw_exception(std::exception const& e);
#endif
}  // namespace Catch

#define CATCH_PREPARE_EXCEPTION(type, msg) \
  type((Catch::ReusableStringStream() << msg).str())
#define CATCH_INTERNAL_ERROR(msg)                 \
  Catch::throw_exception(CATCH_PREPARE_EXCEPTION( \
      std::logic_error,                           \
      CATCH_INTERNAL_LINEINFO << ": Internal Catch error: " << msg))
#define CATCH_ERROR(msg) \
  Catch::throw_exception(CATCH_PREPARE_EXCEPTION(std::domain_error, msg))
#define CATCH_RUNTIME_ERROR(msg) \
  Catch::throw_exception(CATCH_PREPARE_EXCEPTION(std::runtime_error, msg))
#define CATCH_ENFORCE(condition, msg)   \
  do {                                  \
    if (!(condition)) CATCH_ERROR(msg); \
  } while (false)

// end catch_enforce.h
#include <cassert>
#include <memory>
#include <vector>

#include <utility>

namespace Catch {
namespace Generators {

// !TBD move this into its own location?
namespace pf {
template <typename T, typename... Args>
std::unique_ptr<T> make_unique(Args&&... args) {
  return std::unique_ptr<T>(new T(std::forward<Args>(args)...));
}
}  // namespace pf

template <typename T>
struct IGenerator {
  virtual ~IGenerator() {}
  virtual auto get(size_t index) const -> T = 0;
};

template <typename T>
class SingleValueGenerator : public IGenerator<T> {
  T m_value;

 public:
  SingleValueGenerator(T const& value) : m_value(value) {}

  auto get(size_t) const -> T override { return m_value; }
};

template <typename T>
class FixedValuesGenerator : public IGenerator<T> {
  std::vector<T> m_values;

 public:
  FixedValuesGenerator(std::initializer_list<T> values) : m_values(values) {}

  auto get(size_t index) const -> T override { return m_values[index]; }
};

template <typename T>
class RangeGenerator : public IGenerator<T> {
  T const m_first;
  T const m_last;

 public:
  RangeGenerator(T const& first, T const& last) : m_first(first), m_last(last) {
    assert(m_last > m_first);
  }

  auto get(size_t index) const -> T override {
    // ToDo:: introduce a safe cast to catch potential overflows
    return static_cast<T>(m_first + index);
  }
};

template <typename T>
struct NullGenerator : IGenerator<T> {
  auto get(size_t) const -> T override {
    CATCH_INTERNAL_ERROR("A Null Generator is always empty");
  }
};

template <typename T>
class Generator {
  std::unique_ptr<IGenerator<T>> m_generator;
  size_t m_size;

 public:
  Generator(size_t size, std::unique_ptr<IGenerator<T>> generator)
      : m_generator(std::move(generator)), m_size(size) {}

  auto size() const -> size_t { return m_size; }
  auto operator[](size_t index) const -> T {
    assert(index < m_size);
    return m_generator->get(index);
  }
};

std::vector<size_t> randomiseIndices(size_t selectionSize, size_t sourceSize);

template <typename T>
class GeneratorRandomiser : public IGenerator<T> {
  Generator<T> m_baseGenerator;

  std::vector<size_t> m_indices;

 public:
  GeneratorRandomiser(Generator<T>&& baseGenerator, size_t numberOfItems)
      : m_baseGenerator(std::move(baseGenerator)),
        m_indices(randomiseIndices(numberOfItems, m_baseGenerator.size())) {}

  auto get(size_t index) const -> T override {
    return m_baseGenerator[m_indices[index]];
  }
};

template <typename T>
struct RequiresASpecialisationFor;

template <typename T>
auto all() -> Generator<T> {
  return RequiresASpecialisationFor<T>();
}

template <>
auto all<int>() -> Generator<int>;

template <typename T>
auto range(T const& first, T const& last) -> Generator<T> {
  return Generator<T>((last - first),
                      pf::make_unique<RangeGenerator<T>>(first, last));
}

template <typename T>
auto random(T const& first, T const& last) -> Generator<T> {
  auto gen = range(first, last);
  auto size = gen.size();

  return Generator<T>(
      size, pf::make_unique<GeneratorRandomiser<T>>(std::move(gen), size));
}
template <typename T>
auto random(size_t size) -> Generator<T> {
  return Generator<T>(size,
                      pf::make_unique<GeneratorRandomiser<T>>(all<T>(), size));
}

template <typename T>
auto values(std::initializer_list<T> values) -> Generator<T> {
  return Generator<T>(values.size(),
                      pf::make_unique<FixedValuesGenerator<T>>(values));
}
template <typename T>
auto value(T const& val) -> Generator<T> {
  return Generator<T>(1, pf::make_unique<SingleValueGenerator<T>>(val));
}

template <typename T>
auto as() -> Generator<T> {
  return Generator<T>(0, pf::make_unique<NullGenerator<T>>());
}

template <typename... Ts>
auto table(std::initializer_list<std::tuple<Ts...>>&& tuples)
    -> Generator<std::tuple<Ts...>> {
  return values<std::tuple<Ts...>>(
      std::forward<std::initializer_list<std::tuple<Ts...>>>(tuples));
}

template <typename T>
struct Generators : GeneratorBase {
  std::vector<Generator<T>> m_generators;

  using type = T;

  Generators() : GeneratorBase(0) {}

  void populate(T&& val) {
    m_size += 1;
    m_generators.emplace_back(value(std::move(val)));
  }
  template <typename U>
  void populate(U&& val) {
    populate(T(std::move(val)));
  }
  void populate(Generator<T>&& generator) {
    m_size += generator.size();
    m_generators.emplace_back(std::move(generator));
  }

  template <typename U, typename... Gs>
  void populate(U&& valueOrGenerator, Gs... moreGenerators) {
    populate(std::forward<U>(valueOrGenerator));
    populate(std::forward<Gs>(moreGenerators)...);
  }

  auto operator[](size_t index) const -> T {
    size_t sizes = 0;
    for (auto const& gen : m_generators) {
      auto localIndex = index - sizes;
      sizes += gen.size();
      if (index < sizes) return gen[localIndex];
    }
    CATCH_INTERNAL_ERROR("Index '" << index << "' is out of range (" << sizes
                                   << ')');
  }
};

template <typename T, typename... Gs>
auto makeGenerators(Generator<T>&& generator, Gs... moreGenerators)
    -> Generators<T> {
  Generators<T> generators;
  generators.m_generators.reserve(1 + sizeof...(Gs));
  generators.populate(std::move(generator),
                      std::forward<Gs>(moreGenerators)...);
  return generators;
}
template <typename T>
auto makeGenerators(Generator<T>&& generator) -> Generators<T> {
  Generators<T> generators;
  generators.populate(std::move(generator));
  return generators;
}
template <typename T, typename... Gs>
auto makeGenerators(T&& val, Gs... moreGenerators) -> Generators<T> {
  return makeGenerators(value(std::forward<T>(val)),
                        std::forward<Gs>(moreGenerators)...);
}
template <typename T, typename U, typename... Gs>
auto makeGenerators(U&& val, Gs... moreGenerators) -> Generators<T> {
  return makeGenerators(value(T(std::forward<U>(val))),
                        std::forward<Gs>(moreGenerators)...);
}

auto acquireGeneratorTracker(SourceLineInfo const& lineInfo)
    -> IGeneratorTracker&;

template <typename L>
// Note: The type after -> is weird, because VS2015 cannot parse
//       the expression used in the typedef inside, when it is in
//       return type. Yeah, ¯\_(ツ)_/¯
auto generate(SourceLineInfo const& lineInfo, L const& generatorExpression)
    -> decltype(std::declval<decltype(generatorExpression())>()[0]) {
  using UnderlyingType = typename decltype(generatorExpression())::type;

  IGeneratorTracker& tracker = acquireGeneratorTracker(lineInfo);
  if (!tracker.hasGenerator())
    tracker.setGenerator(
        pf::make_unique<Generators<UnderlyingType>>(generatorExpression()));

  auto const& generator =
      static_cast<Generators<UnderlyingType> const&>(*tracker.getGenerator());
  return generator[tracker.getIndex()];
}

}  // namespace Generators
}  // namespace Catch

#define GENERATE(...)                                       \
  Catch::Generators::generate(CATCH_INTERNAL_LINEINFO, [] { \
    using namespace Catch::Generators;                      \
    return makeGenerators(__VA_ARGS__);                     \
  })

// end catch_generators.hpp

// These files are included here so the single_include script doesn't put them
// in the conditionally compiled sections
// start catch_test_case_info.h

#include <memory>
#include <string>
#include <vector>

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

namespace Catch {

struct ITestInvoker;

struct TestCaseInfo {
  enum SpecialProperties {
    None = 0,
    IsHidden = 1 << 1,
    ShouldFail = 1 << 2,
    MayFail = 1 << 3,
    Throws = 1 << 4,
    NonPortable = 1 << 5,
    Benchmark = 1 << 6
  };

  TestCaseInfo(std::string const& _name, std::string const& _className,
               std::string const& _description,
               std::vector<std::string> const& _tags,
               SourceLineInfo const& _lineInfo);

  friend void setTags(TestCaseInfo& testCaseInfo,
                      std::vector<std::string> tags);

  bool isHidden() const;
  bool throws() const;
  bool okToFail() const;
  bool expectedToFail() const;

  std::string tagsAsString() const;

  std::string name;
  std::string className;
  std::string description;
  std::vector<std::string> tags;
  std::vector<std::string> lcaseTags;
  SourceLineInfo lineInfo;
  SpecialProperties properties;
};

class TestCase : public TestCaseInfo {
 public:
  TestCase(ITestInvoker* testCase, TestCaseInfo&& info);

  TestCase withName(std::string const& _newName) const;

  void invoke() const;

  TestCaseInfo const& getTestCaseInfo() const;

  bool operator==(TestCase const& other) const;
  bool operator<(TestCase const& other) const;

 private:
  std::shared_ptr<ITestInvoker> test;
};

TestCase makeTestCase(ITestInvoker* testCase, std::string const& className,
                      NameAndTags const& nameAndTags,
                      SourceLineInfo const& lineInfo);
}  // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_case_info.h
// start catch_interfaces_runner.h

namespace Catch {

struct IRunner {
  virtual ~IRunner();
  virtual bool aborting() const = 0;
};
}  // namespace Catch

// end catch_interfaces_runner.h

#ifdef __OBJC__
// start catch_objc.hpp

#import <objc/runtime.h>

#include <string>

// NB. Any general catch headers included here must be included
// in catch.hpp first to make sure they are included by the single
// header for non obj-usage

///////////////////////////////////////////////////////////////////////////////
// This protocol is really only here for (self) documenting purposes, since
// all its methods are optional.
@protocol OcFixture

@optional

- (void)setUp;
- (void)tearDown;

@end

namespace Catch {

class OcMethod : public ITestInvoker {
 public:
  OcMethod(Class cls, SEL sel) : m_cls(cls), m_sel(sel) {}

  virtual void invoke() const {
    id obj = [[m_cls alloc] init];

    performOptionalSelector(obj, @selector(setUp));
    performOptionalSelector(obj, m_sel);
    performOptionalSelector(obj, @selector(tearDown));

    arcSafeRelease(obj);
  }

 private:
  virtual ~OcMethod() {}

  Class m_cls;
  SEL m_sel;
};

namespace Detail {

inline std::string getAnnotation(Class cls, std::string const& annotationName,
                                 std::string const& testCaseName) {
  NSString* selStr =
      [[NSString alloc] initWithFormat:@"Catch_%s_%s", annotationName.c_str(),
                                       testCaseName.c_str()];
  SEL sel = NSSelectorFromString(selStr);
  arcSafeRelease(selStr);
  id value = performOptionalSelector(cls, sel);
  if (value) return [(NSString*)value UTF8String];
  return "";
}
}  // namespace Detail

inline std::size_t registerTestMethods() {
  std::size_t noTestMethods = 0;
  int noClasses = objc_getClassList(nullptr, 0);

  Class* classes =
      (CATCH_UNSAFE_UNRETAINED Class*)malloc(sizeof(Class) * noClasses);
  objc_getClassList(classes, noClasses);

  for (int c = 0; c < noClasses; c++) {
    Class cls = classes[c];
    {
      u_int count;
      Method* methods = class_copyMethodList(cls, &count);
      for (u_int m = 0; m < count; m++) {
        SEL selector = method_getName(methods[m]);
        std::string methodName = sel_getName(selector);
        if (startsWith(methodName, "Catch_TestCase_")) {
          std::string testCaseName = methodName.substr(15);
          std::string name = Detail::getAnnotation(cls, "Name", testCaseName);
          std::string desc =
              Detail::getAnnotation(cls, "Description", testCaseName);
          const char* className = class_getName(cls);

          getMutableRegistryHub().registerTest(makeTestCase(
              new OcMethod(cls, selector), className,
              NameAndTags(name.c_str(), desc.c_str()), SourceLineInfo("", 0)));
          noTestMethods++;
        }
      }
      free(methods);
    }
  }
  return noTestMethods;
}

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)

namespace Matchers {
namespace Impl {
namespace NSStringMatchers {

struct StringHolder : MatcherBase<NSString*> {
  StringHolder(NSString* substr) : m_substr([substr copy]) {}
  StringHolder(StringHolder const& other) : m_substr([other.m_substr copy]) {}
  StringHolder() { arcSafeRelease(m_substr); }

  bool match(NSString* arg) const override { return false; }

  NSString* CATCH_ARC_STRONG m_substr;
};

struct Equals : StringHolder {
  Equals(NSString* substr) : StringHolder(substr) {}

  bool match(NSString* str) const override {
    return (str != nil || m_substr == nil) && [str isEqualToString:m_substr];
  }

  std::string describe() const override {
    return "equals string: " + Catch::Detail::stringify(m_substr);
  }
};

struct Contains : StringHolder {
  Contains(NSString* substr) : StringHolder(substr) {}

  bool match(NSString* str) const {
    return (str != nil || m_substr == nil) &&
           [str rangeOfString:m_substr].location != NSNotFound;
  }

  std::string describe() const override {
    return "contains string: " + Catch::Detail::stringify(m_substr);
  }
};

struct StartsWith : StringHolder {
  StartsWith(NSString* substr) : StringHolder(substr) {}

  bool match(NSString* str) const override {
    return (str != nil || m_substr == nil) &&
           [str rangeOfString:m_substr].location == 0;
  }

  std::string describe() const override {
    return "starts with: " + Catch::Detail::stringify(m_substr);
  }
};
struct EndsWith : StringHolder {
  EndsWith(NSString* substr) : StringHolder(substr) {}

  bool match(NSString* str) const override {
    return (str != nil || m_substr == nil) &&
           [str rangeOfString:m_substr].location ==
               [str length] - [m_substr length];
  }

  std::string describe() const override {
    return "ends with: " + Catch::Detail::stringify(m_substr);
  }
};

}  // namespace NSStringMatchers
}  // namespace Impl

inline Impl::NSStringMatchers::Equals Equals(NSString* substr) {
  return Impl::NSStringMatchers::Equals(substr);
}

inline Impl::NSStringMatchers::Contains Contains(NSString* substr) {
  return Impl::NSStringMatchers::Contains(substr);
}

inline Impl::NSStringMatchers::StartsWith StartsWith(NSString* substr) {
  return Impl::NSStringMatchers::StartsWith(substr);
}

inline Impl::NSStringMatchers::EndsWith EndsWith(NSString* substr) {
  return Impl::NSStringMatchers::EndsWith(substr);
}

}  // namespace Matchers

using namespace Matchers;

#endif  // CATCH_CONFIG_DISABLE_MATCHERS

}  // namespace Catch

///////////////////////////////////////////////////////////////////////////////
#define OC_MAKE_UNIQUE_NAME(root, uniqueSuffix) root##uniqueSuffix
#define OC_TEST_CASE2(name, desc, uniqueSuffix)                            \
  +(NSString*)OC_MAKE_UNIQUE_NAME(Catch_Name_test_, uniqueSuffix) {        \
    return @name;                                                          \
  }                                                                        \
  +(NSString*)OC_MAKE_UNIQUE_NAME(Catch_Description_test_, uniqueSuffix) { \
    return @desc;                                                          \
  }                                                                        \
  -(void)OC_MAKE_UNIQUE_NAME(Catch_TestCase_test_, uniqueSuffix)

#define OC_TEST_CASE(name, desc) OC_TEST_CASE2(name, desc, __LINE__)

// end catch_objc.hpp
#endif

#ifdef CATCH_CONFIG_EXTERNAL_INTERFACES
// start catch_external_interfaces.h

// start catch_reporter_bases.hpp

// start catch_interfaces_reporter.h

// start catch_config.hpp

// start catch_test_spec_parser.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

// start catch_test_spec.h

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wpadded"
#endif

// start catch_wildcard_pattern.h

namespace Catch {
class WildcardPattern {
  enum WildcardPosition {
    NoWildcard = 0,
    WildcardAtStart = 1,
    WildcardAtEnd = 2,
    WildcardAtBothEnds = WildcardAtStart | WildcardAtEnd
  };

 public:
  WildcardPattern(std::string const& pattern,
                  CaseSensitive::Choice caseSensitivity);
  virtual ~WildcardPattern() = default;
  virtual bool matches(std::string const& str) const;

 private:
  std::string adjustCase(std::string const& str) const;
  CaseSensitive::Choice m_caseSensitivity;
  WildcardPosition m_wildcard = NoWildcard;
  std::string m_pattern;
};
}  // namespace Catch

// end catch_wildcard_pattern.h
#include <memory>
#include <string>
#include <vector>

namespace Catch {

class TestSpec {
  struct Pattern {
    virtual ~Pattern();
    virtual bool matches(TestCaseInfo const& testCase) const = 0;
  };
  using PatternPtr = std::shared_ptr<Pattern>;

  class NamePattern : public Pattern {
   public:
    NamePattern(std::string const& name);
    virtual ~NamePattern();
    virtual bool matches(TestCaseInfo const& testCase) const override;

   private:
    WildcardPattern m_wildcardPattern;
  };

  class TagPattern : public Pattern {
   public:
    TagPattern(std::string const& tag);
    virtual ~TagPattern();
    virtual bool matches(TestCaseInfo const& testCase) const override;

   private:
    std::string m_tag;
  };

  class ExcludedPattern : public Pattern {
   public:
    ExcludedPattern(PatternPtr const& underlyingPattern);
    virtual ~ExcludedPattern();
    virtual bool matches(TestCaseInfo const& testCase) const override;

   private:
    PatternPtr m_underlyingPattern;
  };

  struct Filter {
    std::vector<PatternPtr> m_patterns;

    bool matches(TestCaseInfo const& testCase) const;
  };

 public:
  bool hasFilters() const;
  bool matches(TestCaseInfo const& testCase) const;

 private:
  std::vector<Filter> m_filters;

  friend class TestSpecParser;
};
}  // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_spec.h
// start catch_interfaces_tag_alias_registry.h

#include <string>

namespace Catch {

struct TagAlias;

struct ITagAliasRegistry {
  virtual ~ITagAliasRegistry();
  // Nullptr if not present
  virtual TagAlias const* find(std::string const& alias) const = 0;
  virtual std::string expandAliases(
      std::string const& unexpandedTestSpec) const = 0;

  static ITagAliasRegistry const& get();
};

}  // end namespace Catch

// end catch_interfaces_tag_alias_registry.h
namespace Catch {

class TestSpecParser {
  enum Mode { None, Name, QuotedName, Tag, EscapedName };
  Mode m_mode = None;
  bool m_exclusion = false;
  std::size_t m_start = std::string::npos, m_pos = 0;
  std::string m_arg;
  std::vector<std::size_t> m_escapeChars;
  TestSpec::Filter m_currentFilter;
  TestSpec m_testSpec;
  ITagAliasRegistry const* m_tagAliases = nullptr;

 public:
  TestSpecParser(ITagAliasRegistry const& tagAliases);

  TestSpecParser& parse(std::string const& arg);
  TestSpec testSpec();

 private:
  void visitChar(char c);
  void startNewMode(Mode mode, std::size_t start);
  void escape();
  std::string subString() const;

  template <typename T>
  void addPattern() {
    std::string token = subString();
    for (std::size_t i = 0; i < m_escapeChars.size(); ++i)
      token = token.substr(0, m_escapeChars[i] - m_start - i) +
              token.substr(m_escapeChars[i] - m_start - i + 1);
    m_escapeChars.clear();
    if (startsWith(token, "exclude:")) {
      m_exclusion = true;
      token = token.substr(8);
    }
    if (!token.empty()) {
      TestSpec::PatternPtr pattern = std::make_shared<T>(token);
      if (m_exclusion)
        pattern = std::make_shared<TestSpec::ExcludedPattern>(pattern);
      m_currentFilter.m_patterns.push_back(pattern);
    }
    m_exclusion = false;
    m_mode = None;
  }

  void addFilter();
};
TestSpec parseTestSpec(std::string const& arg);

}  // namespace Catch

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_test_spec_parser.h
// start catch_interfaces_config.h

#include <iosfwd>
#include <memory>
#include <string>
#include <vector>

namespace Catch {

enum class Verbosity { Quiet = 0, Normal, High };

struct WarnAbout {
  enum What { Nothing = 0x00, NoAssertions = 0x01, NoTests = 0x02 };
};

struct ShowDurations {
  enum OrNot { DefaultForReporter, Always, Never };
};
struct RunTests {
  enum InWhatOrder {
    InDeclarationOrder,
    InLexicographicalOrder,
    InRandomOrder
  };
};
struct UseColour {
  enum YesOrNo { Auto, Yes, No };
};
struct WaitForKeypress {
  enum When {
    Never,
    BeforeStart = 1,
    BeforeExit = 2,
    BeforeStartAndExit = BeforeStart | BeforeExit
  };
};

class TestSpec;

struct IConfig : NonCopyable {
  virtual ~IConfig();

  virtual bool allowThrows() const = 0;
  virtual std::ostream& stream() const = 0;
  virtual std::string name() const = 0;
  virtual bool includeSuccessfulResults() const = 0;
  virtual bool shouldDebugBreak() const = 0;
  virtual bool warnAboutMissingAssertions() const = 0;
  virtual bool warnAboutNoTests() const = 0;
  virtual int abortAfter() const = 0;
  virtual bool showInvisibles() const = 0;
  virtual ShowDurations::OrNot showDurations() const = 0;
  virtual TestSpec const& testSpec() const = 0;
  virtual bool hasTestFilters() const = 0;
  virtual RunTests::InWhatOrder runOrder() const = 0;
  virtual unsigned int rngSeed() const = 0;
  virtual int benchmarkResolutionMultiple() const = 0;
  virtual UseColour::YesOrNo useColour() const = 0;
  virtual std::vector<std::string> const& getSectionsToRun() const = 0;
  virtual Verbosity verbosity() const = 0;
};

using IConfigPtr = std::shared_ptr<IConfig const>;
}  // namespace Catch

// end catch_interfaces_config.h
// Libstdc++ doesn't like incomplete classes for unique_ptr

#include <memory>
#include <string>
#include <vector>

#ifndef CATCH_CONFIG_CONSOLE_WIDTH
#define CATCH_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch {

struct IStream;

struct ConfigData {
  bool listTests = false;
  bool listTags = false;
  bool listReporters = false;
  bool listTestNamesOnly = false;

  bool showSuccessfulTests = false;
  bool shouldDebugBreak = false;
  bool noThrow = false;
  bool showHelp = false;
  bool showInvisibles = false;
  bool filenamesAsTags = false;
  bool libIdentify = false;

  int abortAfter = -1;
  unsigned int rngSeed = 0;
  int benchmarkResolutionMultiple = 100;

  Verbosity verbosity = Verbosity::Normal;
  WarnAbout::What warnings = WarnAbout::Nothing;
  ShowDurations::OrNot showDurations = ShowDurations::DefaultForReporter;
  RunTests::InWhatOrder runOrder = RunTests::InDeclarationOrder;
  UseColour::YesOrNo useColour = UseColour::Auto;
  WaitForKeypress::When waitForKeypress = WaitForKeypress::Never;

  std::string outputFilename;
  std::string name;
  std::string processName;
#ifndef CATCH_CONFIG_DEFAULT_REPORTER
#define CATCH_CONFIG_DEFAULT_REPORTER "console"
#endif
  std::string reporterName = CATCH_CONFIG_DEFAULT_REPORTER;
#undef CATCH_CONFIG_DEFAULT_REPORTER

  std::vector<std::string> testsOrTags;
  std::vector<std::string> sectionsToRun;
};

class Config : public IConfig {
 public:
  Config() = default;
  Config(ConfigData const& data);
  virtual ~Config() = default;

  std::string const& getFilename() const;

  bool listTests() const;
  bool listTestNamesOnly() const;
  bool listTags() const;
  bool listReporters() const;

  std::string getProcessName() const;
  std::string const& getReporterName() const;

  std::vector<std::string> const& getTestsOrTags() const;
  std::vector<std::string> const& getSectionsToRun() const override;

  virtual TestSpec const& testSpec() const override;
  bool hasTestFilters() const override;

  bool showHelp() const;

  // IConfig interface
  bool allowThrows() const override;
  std::ostream& stream() const override;
  std::string name() const override;
  bool includeSuccessfulResults() const override;
  bool warnAboutMissingAssertions() const override;
  bool warnAboutNoTests() const override;
  ShowDurations::OrNot showDurations() const override;
  RunTests::InWhatOrder runOrder() const override;
  unsigned int rngSeed() const override;
  int benchmarkResolutionMultiple() const override;
  UseColour::YesOrNo useColour() const override;
  bool shouldDebugBreak() const override;
  int abortAfter() const override;
  bool showInvisibles() const override;
  Verbosity verbosity() const override;

 private:
  IStream const* openStream();
  ConfigData m_data;

  std::unique_ptr<IStream const> m_stream;
  TestSpec m_testSpec;
  bool m_hasTestFilters = false;
};

}  // end namespace Catch

// end catch_config.hpp
// start catch_assertionresult.h

#include <string>

namespace Catch {

struct AssertionResultData {
  AssertionResultData() = delete;

  AssertionResultData(ResultWas::OfType _resultType,
                      LazyExpression const& _lazyExpression);

  std::string message;
  mutable std::string reconstructedExpression;
  LazyExpression lazyExpression;
  ResultWas::OfType resultType;

  std::string reconstructExpression() const;
};

class AssertionResult {
 public:
  AssertionResult() = delete;
  AssertionResult(AssertionInfo const& info, AssertionResultData const& data);

  bool isOk() const;
  bool succeeded() const;
  ResultWas::OfType getResultType() const;
  bool hasExpression() const;
  bool hasMessage() const;
  std::string getExpression() const;
  std::string getExpressionInMacro() const;
  bool hasExpandedExpression() const;
  std::string getExpandedExpression() const;
  std::string getMessage() const;
  SourceLineInfo getSourceInfo() const;
  StringRef getTestMacroName() const;

  // protected:
  AssertionInfo m_info;
  AssertionResultData m_resultData;
};

}  // end namespace Catch

// end catch_assertionresult.h
// start catch_option.hpp

namespace Catch {

// An optional type
template <typename T>
class Option {
 public:
  Option() : nullableValue(nullptr) {}
  Option(T const& _value) : nullableValue(new (storage) T(_value)) {}
  Option(Option const& _other)
      : nullableValue(_other ? new (storage) T(*_other) : nullptr) {}

  ~Option() { reset(); }

  Option& operator=(Option const& _other) {
    if (&_other != this) {
      reset();
      if (_other) nullableValue = new (storage) T(*_other);
    }
    return *this;
  }
  Option& operator=(T const& _value) {
    reset();
    nullableValue = new (storage) T(_value);
    return *this;
  }

  void reset() {
    if (nullableValue) nullableValue->~T();
    nullableValue = nullptr;
  }

  T& operator*() { return *nullableValue; }
  T const& operator*() const { return *nullableValue; }
  T* operator->() { return nullableValue; }
  const T* operator->() const { return nullableValue; }

  T valueOr(T const& defaultValue) const {
    return nullableValue ? *nullableValue : defaultValue;
  }

  bool some() const { return nullableValue != nullptr; }
  bool none() const { return nullableValue == nullptr; }

  bool operator!() const { return nullableValue == nullptr; }
  explicit operator bool() const { return some(); }

 private:
  T* nullableValue;
  alignas(alignof(T)) char storage[sizeof(T)];
};

}  // end namespace Catch

// end catch_option.hpp
#include <iosfwd>
#include <map>
#include <memory>
#include <set>
#include <string>

namespace Catch {

struct ReporterConfig {
  explicit ReporterConfig(IConfigPtr const& _fullConfig);

  ReporterConfig(IConfigPtr const& _fullConfig, std::ostream& _stream);

  std::ostream& stream() const;
  IConfigPtr fullConfig() const;

 private:
  std::ostream* m_stream;
  IConfigPtr m_fullConfig;
};

struct ReporterPreferences {
  bool shouldRedirectStdOut = false;
  bool shouldReportAllAssertions = false;
};

template <typename T>
struct LazyStat : Option<T> {
  LazyStat& operator=(T const& _value) {
    Option<T>::operator=(_value);
    used = false;
    return *this;
  }
  void reset() {
    Option<T>::reset();
    used = false;
  }
  bool used = false;
};

struct TestRunInfo {
  TestRunInfo(std::string const& _name);
  std::string name;
};
struct GroupInfo {
  GroupInfo(std::string const& _name, std::size_t _groupIndex,
            std::size_t _groupsCount);

  std::string name;
  std::size_t groupIndex;
  std::size_t groupsCounts;
};

struct AssertionStats {
  AssertionStats(AssertionResult const& _assertionResult,
                 std::vector<MessageInfo> const& _infoMessages,
                 Totals const& _totals);

  AssertionStats(AssertionStats const&) = default;
  AssertionStats(AssertionStats&&) = default;
  AssertionStats& operator=(AssertionStats const&) = default;
  AssertionStats& operator=(AssertionStats&&) = default;
  virtual ~AssertionStats();

  AssertionResult assertionResult;
  std::vector<MessageInfo> infoMessages;
  Totals totals;
};

struct SectionStats {
  SectionStats(SectionInfo const& _sectionInfo, Counts const& _assertions,
               double _durationInSeconds, bool _missingAssertions);
  SectionStats(SectionStats const&) = default;
  SectionStats(SectionStats&&) = default;
  SectionStats& operator=(SectionStats const&) = default;
  SectionStats& operator=(SectionStats&&) = default;
  virtual ~SectionStats();

  SectionInfo sectionInfo;
  Counts assertions;
  double durationInSeconds;
  bool missingAssertions;
};

struct TestCaseStats {
  TestCaseStats(TestCaseInfo const& _testInfo, Totals const& _totals,
                std::string const& _stdOut, std::string const& _stdErr,
                bool _aborting);

  TestCaseStats(TestCaseStats const&) = default;
  TestCaseStats(TestCaseStats&&) = default;
  TestCaseStats& operator=(TestCaseStats const&) = default;
  TestCaseStats& operator=(TestCaseStats&&) = default;
  virtual ~TestCaseStats();

  TestCaseInfo testInfo;
  Totals totals;
  std::string stdOut;
  std::string stdErr;
  bool aborting;
};

struct TestGroupStats {
  TestGroupStats(GroupInfo const& _groupInfo, Totals const& _totals,
                 bool _aborting);
  TestGroupStats(GroupInfo const& _groupInfo);

  TestGroupStats(TestGroupStats const&) = default;
  TestGroupStats(TestGroupStats&&) = default;
  TestGroupStats& operator=(TestGroupStats const&) = default;
  TestGroupStats& operator=(TestGroupStats&&) = default;
  virtual ~TestGroupStats();

  GroupInfo groupInfo;
  Totals totals;
  bool aborting;
};

struct TestRunStats {
  TestRunStats(TestRunInfo const& _runInfo, Totals const& _totals,
               bool _aborting);

  TestRunStats(TestRunStats const&) = default;
  TestRunStats(TestRunStats&&) = default;
  TestRunStats& operator=(TestRunStats const&) = default;
  TestRunStats& operator=(TestRunStats&&) = default;
  virtual ~TestRunStats();

  TestRunInfo runInfo;
  Totals totals;
  bool aborting;
};

struct BenchmarkInfo {
  std::string name;
};
struct BenchmarkStats {
  BenchmarkInfo info;
  std::size_t iterations;
  uint64_t elapsedTimeInNanoseconds;
};

struct IStreamingReporter {
  virtual ~IStreamingReporter() = default;

  // Implementing class must also provide the following static methods:
  // static std::string getDescription();
  // static std::set<Verbosity> getSupportedVerbosities()

  virtual ReporterPreferences getPreferences() const = 0;

  virtual void noMatchingTestCases(std::string const& spec) = 0;

  virtual void testRunStarting(TestRunInfo const& testRunInfo) = 0;
  virtual void testGroupStarting(GroupInfo const& groupInfo) = 0;

  virtual void testCaseStarting(TestCaseInfo const& testInfo) = 0;
  virtual void sectionStarting(SectionInfo const& sectionInfo) = 0;

  // *** experimental ***
  virtual void benchmarkStarting(BenchmarkInfo const&) {}

  virtual void assertionStarting(AssertionInfo const& assertionInfo) = 0;

  // The return value indicates if the messages buffer should be cleared:
  virtual bool assertionEnded(AssertionStats const& assertionStats) = 0;

  // *** experimental ***
  virtual void benchmarkEnded(BenchmarkStats const&) {}

  virtual void sectionEnded(SectionStats const& sectionStats) = 0;
  virtual void testCaseEnded(TestCaseStats const& testCaseStats) = 0;
  virtual void testGroupEnded(TestGroupStats const& testGroupStats) = 0;
  virtual void testRunEnded(TestRunStats const& testRunStats) = 0;

  virtual void skipTest(TestCaseInfo const& testInfo) = 0;

  // Default empty implementation provided
  virtual void fatalErrorEncountered(StringRef name);

  virtual bool isMulti() const;
};
using IStreamingReporterPtr = std::unique_ptr<IStreamingReporter>;

struct IReporterFactory {
  virtual ~IReporterFactory();
  virtual IStreamingReporterPtr create(ReporterConfig const& config) const = 0;
  virtual std::string getDescription() const = 0;
};
using IReporterFactoryPtr = std::shared_ptr<IReporterFactory>;

struct IReporterRegistry {
  using FactoryMap = std::map<std::string, IReporterFactoryPtr>;
  using Listeners = std::vector<IReporterFactoryPtr>;

  virtual ~IReporterRegistry();
  virtual IStreamingReporterPtr create(std::string const& name,
                                       IConfigPtr const& config) const = 0;
  virtual FactoryMap const& getFactories() const = 0;
  virtual Listeners const& getListeners() const = 0;
};

}  // end namespace Catch

// end catch_interfaces_reporter.h
#include <algorithm>
#include <cassert>
#include <cfloat>
#include <cstdio>
#include <cstring>
#include <memory>
#include <ostream>

namespace Catch {
void prepareExpandedExpression(AssertionResult& result);

// Returns double formatted as %.3f (format expected on output)
std::string getFormattedDuration(double duration);

template <typename DerivedT>
struct StreamingReporterBase : IStreamingReporter {
  StreamingReporterBase(ReporterConfig const& _config)
      : m_config(_config.fullConfig()), stream(_config.stream()) {
    m_reporterPrefs.shouldRedirectStdOut = false;
    if (!DerivedT::getSupportedVerbosities().count(m_config->verbosity()))
      CATCH_ERROR("Verbosity level not supported by this reporter");
  }

  ReporterPreferences getPreferences() const override {
    return m_reporterPrefs;
  }

  static std::set<Verbosity> getSupportedVerbosities() {
    return {Verbosity::Normal};
  }

  ~StreamingReporterBase() override = default;

  void noMatchingTestCases(std::string const&) override {}

  void testRunStarting(TestRunInfo const& _testRunInfo) override {
    currentTestRunInfo = _testRunInfo;
  }
  void testGroupStarting(GroupInfo const& _groupInfo) override {
    currentGroupInfo = _groupInfo;
  }

  void testCaseStarting(TestCaseInfo const& _testInfo) override {
    currentTestCaseInfo = _testInfo;
  }
  void sectionStarting(SectionInfo const& _sectionInfo) override {
    m_sectionStack.push_back(_sectionInfo);
  }

  void sectionEnded(SectionStats const& /* _sectionStats */) override {
    m_sectionStack.pop_back();
  }
  void testCaseEnded(TestCaseStats const& /* _testCaseStats */) override {
    currentTestCaseInfo.reset();
  }
  void testGroupEnded(TestGroupStats const& /* _testGroupStats */) override {
    currentGroupInfo.reset();
  }
  void testRunEnded(TestRunStats const& /* _testRunStats */) override {
    currentTestCaseInfo.reset();
    currentGroupInfo.reset();
    currentTestRunInfo.reset();
  }

  void skipTest(TestCaseInfo const&) override {
    // Don't do anything with this by default.
    // It can optionally be overridden in the derived class.
  }

  IConfigPtr m_config;
  std::ostream& stream;

  LazyStat<TestRunInfo> currentTestRunInfo;
  LazyStat<GroupInfo> currentGroupInfo;
  LazyStat<TestCaseInfo> currentTestCaseInfo;

  std::vector<SectionInfo> m_sectionStack;
  ReporterPreferences m_reporterPrefs;
};

template <typename DerivedT>
struct CumulativeReporterBase : IStreamingReporter {
  template <typename T, typename ChildNodeT>
  struct Node {
    explicit Node(T const& _value) : value(_value) {}
    virtual ~Node() {}

    using ChildNodes = std::vector<std::shared_ptr<ChildNodeT>>;
    T value;
    ChildNodes children;
  };
  struct SectionNode {
    explicit SectionNode(SectionStats const& _stats) : stats(_stats) {}
    virtual ~SectionNode() = default;

    bool operator==(SectionNode const& other) const {
      return stats.sectionInfo.lineInfo == other.stats.sectionInfo.lineInfo;
    }
    bool operator==(std::shared_ptr<SectionNode> const& other) const {
      return operator==(*other);
    }

    SectionStats stats;
    using ChildSections = std::vector<std::shared_ptr<SectionNode>>;
    using Assertions = std::vector<AssertionStats>;
    ChildSections childSections;
    Assertions assertions;
    std::string stdOut;
    std::string stdErr;
  };

  struct BySectionInfo {
    BySectionInfo(SectionInfo const& other) : m_other(other) {}
    BySectionInfo(BySectionInfo const& other) : m_other(other.m_other) {}
    bool operator()(std::shared_ptr<SectionNode> const& node) const {
      return ((node->stats.sectionInfo.name == m_other.name) &&
              (node->stats.sectionInfo.lineInfo == m_other.lineInfo));
    }
    void operator=(BySectionInfo const&) = delete;

   private:
    SectionInfo const& m_other;
  };

  using TestCaseNode = Node<TestCaseStats, SectionNode>;
  using TestGroupNode = Node<TestGroupStats, TestCaseNode>;
  using TestRunNode = Node<TestRunStats, TestGroupNode>;

  CumulativeReporterBase(ReporterConfig const& _config)
      : m_config(_config.fullConfig()), stream(_config.stream()) {
    m_reporterPrefs.shouldRedirectStdOut = false;
    if (!DerivedT::getSupportedVerbosities().count(m_config->verbosity()))
      CATCH_ERROR("Verbosity level not supported by this reporter");
  }
  ~CumulativeReporterBase() override = default;

  ReporterPreferences getPreferences() const override {
    return m_reporterPrefs;
  }

  static std::set<Verbosity> getSupportedVerbosities() {
    return {Verbosity::Normal};
  }

  void testRunStarting(TestRunInfo const&) override {}
  void testGroupStarting(GroupInfo const&) override {}

  void testCaseStarting(TestCaseInfo const&) override {}

  void sectionStarting(SectionInfo const& sectionInfo) override {
    SectionStats incompleteStats(sectionInfo, Counts(), 0, false);
    std::shared_ptr<SectionNode> node;
    if (m_sectionStack.empty()) {
      if (!m_rootSection)
        m_rootSection = std::make_shared<SectionNode>(incompleteStats);
      node = m_rootSection;
    } else {
      SectionNode& parentNode = *m_sectionStack.back();
      auto it = std::find_if(parentNode.childSections.begin(),
                             parentNode.childSections.end(),
                             BySectionInfo(sectionInfo));
      if (it == parentNode.childSections.end()) {
        node = std::make_shared<SectionNode>(incompleteStats);
        parentNode.childSections.push_back(node);
      } else
        node = *it;
    }
    m_sectionStack.push_back(node);
    m_deepestSection = std::move(node);
  }

  void assertionStarting(AssertionInfo const&) override {}

  bool assertionEnded(AssertionStats const& assertionStats) override {
    assert(!m_sectionStack.empty());
    // AssertionResult holds a pointer to a temporary DecomposedExpression,
    // which getExpandedExpression() calls to build the expression string.
    // Our section stack copy of the assertionResult will likely outlive the
    // temporary, so it must be expanded or discarded now to avoid calling
    // a destroyed object later.
    prepareExpandedExpression(
        const_cast<AssertionResult&>(assertionStats.assertionResult));
    SectionNode& sectionNode = *m_sectionStack.back();
    sectionNode.assertions.push_back(assertionStats);
    return true;
  }
  void sectionEnded(SectionStats const& sectionStats) override {
    assert(!m_sectionStack.empty());
    SectionNode& node = *m_sectionStack.back();
    node.stats = sectionStats;
    m_sectionStack.pop_back();
  }
  void testCaseEnded(TestCaseStats const& testCaseStats) override {
    auto node = std::make_shared<TestCaseNode>(testCaseStats);
    assert(m_sectionStack.size() == 0);
    node->children.push_back(m_rootSection);
    m_testCases.push_back(node);
    m_rootSection.reset();

    assert(m_deepestSection);
    m_deepestSection->stdOut = testCaseStats.stdOut;
    m_deepestSection->stdErr = testCaseStats.stdErr;
  }
  void testGroupEnded(TestGroupStats const& testGroupStats) override {
    auto node = std::make_shared<TestGroupNode>(testGroupStats);
    node->children.swap(m_testCases);
    m_testGroups.push_back(node);
  }
  void testRunEnded(TestRunStats const& testRunStats) override {
    auto node = std::make_shared<TestRunNode>(testRunStats);
    node->children.swap(m_testGroups);
    m_testRuns.push_back(node);
    testRunEndedCumulative();
  }
  virtual void testRunEndedCumulative() = 0;

  void skipTest(TestCaseInfo const&) override {}

  IConfigPtr m_config;
  std::ostream& stream;
  std::vector<AssertionStats> m_assertions;
  std::vector<std::vector<std::shared_ptr<SectionNode>>> m_sections;
  std::vector<std::shared_ptr<TestCaseNode>> m_testCases;
  std::vector<std::shared_ptr<TestGroupNode>> m_testGroups;

  std::vector<std::shared_ptr<TestRunNode>> m_testRuns;

  std::shared_ptr<SectionNode> m_rootSection;
  std::shared_ptr<SectionNode> m_deepestSection;
  std::vector<std::shared_ptr<SectionNode>> m_sectionStack;
  ReporterPreferences m_reporterPrefs;
};

template <char C>
char const* getLineOfChars() {
  static char line[CATCH_CONFIG_CONSOLE_WIDTH] = {0};
  if (!*line) {
    std::memset(line, C, CATCH_CONFIG_CONSOLE_WIDTH - 1);
    line[CATCH_CONFIG_CONSOLE_WIDTH - 1] = 0;
  }
  return line;
}

struct TestEventListenerBase : StreamingReporterBase<TestEventListenerBase> {
  TestEventListenerBase(ReporterConfig const& _config);

  static std::set<Verbosity> getSupportedVerbosities();

  void assertionStarting(AssertionInfo const&) override;
  bool assertionEnded(AssertionStats const&) override;
};

}  // end namespace Catch

// end catch_reporter_bases.hpp
// start catch_console_colour.h

namespace Catch {

struct Colour {
  enum Code {
    None = 0,

    White,
    Red,
    Green,
    Blue,
    Cyan,
    Yellow,
    Grey,

    Bright = 0x10,

    BrightRed = Bright | Red,
    BrightGreen = Bright | Green,
    LightGrey = Bright | Grey,
    BrightWhite = Bright | White,
    BrightYellow = Bright | Yellow,

    // By intention
    FileName = LightGrey,
    Warning = BrightYellow,
    ResultError = BrightRed,
    ResultSuccess = BrightGreen,
    ResultExpectedFailure = Warning,

    Error = BrightRed,
    Success = Green,

    OriginalExpression = Cyan,
    ReconstructedExpression = BrightYellow,

    SecondaryText = LightGrey,
    Headers = White
  };

  // Use constructed object for RAII guard
  Colour(Code _colourCode);
  Colour(Colour&& other) noexcept;
  Colour& operator=(Colour&& other) noexcept;
  ~Colour();

  // Use static method for one-shot changes
  static void use(Code _colourCode);

 private:
  bool m_moved = false;
};

std::ostream& operator<<(std::ostream& os, Colour const&);

}  // end namespace Catch

// end catch_console_colour.h
// start catch_reporter_registrars.hpp

namespace Catch {

template <typename T>
class ReporterRegistrar {
  class ReporterFactory : public IReporterFactory {
    virtual IStreamingReporterPtr create(
        ReporterConfig const& config) const override {
      return std::unique_ptr<T>(new T(config));
    }

    virtual std::string getDescription() const override {
      return T::getDescription();
    }
  };

 public:
  explicit ReporterRegistrar(std::string const& name) {
    getMutableRegistryHub().registerReporter(
        name, std::make_shared<ReporterFactory>());
  }
};

template <typename T>
class ListenerRegistrar {
  class ListenerFactory : public IReporterFactory {
    virtual IStreamingReporterPtr create(
        ReporterConfig const& config) const override {
      return std::unique_ptr<T>(new T(config));
    }
    virtual std::string getDescription() const override {
      return std::string();
    }
  };

 public:
  ListenerRegistrar() {
    getMutableRegistryHub().registerListener(
        std::make_shared<ListenerFactory>());
  }
};
}  // namespace Catch

#if !defined(CATCH_CONFIG_DISABLE)

#define CATCH_REGISTER_REPORTER(name, reporterType)    \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS             \
  namespace {                                          \
  Catch::ReporterRegistrar<reporterType>               \
      catch_internal_RegistrarFor##reporterType(name); \
  }                                                    \
  CATCH_INTERNAL_UNSUPPRESS_GLOBALS_WARNINGS

#define CATCH_REGISTER_LISTENER(listenerType)    \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS       \
  namespace {                                    \
  Catch::ListenerRegistrar<listenerType>         \
      catch_internal_RegistrarFor##listenerType; \
  }                                              \
  CATCH_INTERNAL_SUPPRESS_GLOBALS_WARNINGS
#else  // CATCH_CONFIG_DISABLE

#define CATCH_REGISTER_REPORTER(name, reporterType)
#define CATCH_REGISTER_LISTENER(listenerType)

#endif  // CATCH_CONFIG_DISABLE

// end catch_reporter_registrars.hpp
// Allow users to base their work off existing reporters
// start catch_reporter_compact.h

namespace Catch {

struct CompactReporter : StreamingReporterBase<CompactReporter> {
  using StreamingReporterBase::StreamingReporterBase;

  ~CompactReporter() override;

  static std::string getDescription();

  ReporterPreferences getPreferences() const override;

  void noMatchingTestCases(std::string const& spec) override;

  void assertionStarting(AssertionInfo const&) override;

  bool assertionEnded(AssertionStats const& _assertionStats) override;

  void sectionEnded(SectionStats const& _sectionStats) override;

  void testRunEnded(TestRunStats const& _testRunStats) override;
};

}  // end namespace Catch

// end catch_reporter_compact.h
// start catch_reporter_console.h

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4061)  // Not all labels are EXPLICITLY handled in
                                 // switch Note that 4062 (not all labels are
                                 // handled and default is missing) is enabled
#endif

namespace Catch {
// Fwd decls
struct SummaryColumn;
class TablePrinter;

struct ConsoleReporter : StreamingReporterBase<ConsoleReporter> {
  std::unique_ptr<TablePrinter> m_tablePrinter;

  ConsoleReporter(ReporterConfig const& config);
  ~ConsoleReporter() override;
  static std::string getDescription();

  void noMatchingTestCases(std::string const& spec) override;

  void assertionStarting(AssertionInfo const&) override;

  bool assertionEnded(AssertionStats const& _assertionStats) override;

  void sectionStarting(SectionInfo const& _sectionInfo) override;
  void sectionEnded(SectionStats const& _sectionStats) override;

  void benchmarkStarting(BenchmarkInfo const& info) override;
  void benchmarkEnded(BenchmarkStats const& stats) override;

  void testCaseEnded(TestCaseStats const& _testCaseStats) override;
  void testGroupEnded(TestGroupStats const& _testGroupStats) override;
  void testRunEnded(TestRunStats const& _testRunStats) override;

 private:
  void lazyPrint();

  void lazyPrintWithoutClosingBenchmarkTable();
  void lazyPrintRunInfo();
  void lazyPrintGroupInfo();
  void printTestCaseAndSectionHeader();

  void printClosedHeader(std::string const& _name);
  void printOpenHeader(std::string const& _name);

  // if string has a : in first line will set indent to follow it on
  // subsequent lines
  void printHeaderString(std::string const& _string, std::size_t indent = 0);

  void printTotals(Totals const& totals);
  void printSummaryRow(std::string const& label,
                       std::vector<SummaryColumn> const& cols, std::size_t row);

  void printTotalsDivider(Totals const& totals);
  void printSummaryDivider();

 private:
  bool m_headerPrinted = false;
};

}  // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif

// end catch_reporter_console.h
// start catch_reporter_junit.h

// start catch_xmlwriter.h

#include <vector>

namespace Catch {

class XmlEncode {
 public:
  enum ForWhat { ForTextNodes, ForAttributes };

  XmlEncode(std::string const& str, ForWhat forWhat = ForTextNodes);

  void encodeTo(std::ostream& os) const;

  friend std::ostream& operator<<(std::ostream& os, XmlEncode const& xmlEncode);

 private:
  std::string m_str;
  ForWhat m_forWhat;
};

class XmlWriter {
 public:
  class ScopedElement {
   public:
    ScopedElement(XmlWriter* writer);

    ScopedElement(ScopedElement&& other) noexcept;
    ScopedElement& operator=(ScopedElement&& other) noexcept;

    ~ScopedElement();

    ScopedElement& writeText(std::string const& text, bool indent = true);

    template <typename T>
    ScopedElement& writeAttribute(std::string const& name, T const& attribute) {
      m_writer->writeAttribute(name, attribute);
      return *this;
    }

   private:
    mutable XmlWriter* m_writer = nullptr;
  };

  XmlWriter(std::ostream& os = Catch::cout());
  ~XmlWriter();

  XmlWriter(XmlWriter const&) = delete;
  XmlWriter& operator=(XmlWriter const&) = delete;

  XmlWriter& startElement(std::string const& name);

  ScopedElement scopedElement(std::string const& name);

  XmlWriter& endElement();

  XmlWriter& writeAttribute(std::string const& name,
                            std::string const& attribute);

  XmlWriter& writeAttribute(std::string const& name, bool attribute);

  template <typename T>
  XmlWriter& writeAttribute(std::string const& name, T const& attribute) {
    ReusableStringStream rss;
    rss << attribute;
    return writeAttribute(name, rss.str());
  }

  XmlWriter& writeText(std::string const& text, bool indent = true);

  XmlWriter& writeComment(std::string const& text);

  void writeStylesheetRef(std::string const& url);

  XmlWriter& writeBlankLine();

  void ensureTagClosed();

 private:
  void writeDeclaration();

  void newlineIfNecessary();

  bool m_tagIsOpen = false;
  bool m_needsNewline = false;
  std::vector<std::string> m_tags;
  std::string m_indent;
  std::ostream& m_os;
};

}  // namespace Catch

// end catch_xmlwriter.h
namespace Catch {

class JunitReporter : public CumulativeReporterBase<JunitReporter> {
 public:
  JunitReporter(ReporterConfig const& _config);

  ~JunitReporter() override;

  static std::string getDescription();

  void noMatchingTestCases(std::string const& /*spec*/) override;

  void testRunStarting(TestRunInfo const& runInfo) override;

  void testGroupStarting(GroupInfo const& groupInfo) override;

  void testCaseStarting(TestCaseInfo const& testCaseInfo) override;
  bool assertionEnded(AssertionStats const& assertionStats) override;

  void testCaseEnded(TestCaseStats const& testCaseStats) override;

  void testGroupEnded(TestGroupStats const& testGroupStats) override;

  void testRunEndedCumulative() override;

  void writeGroup(TestGroupNode const& groupNode, double suiteTime);

  void writeTestCase(TestCaseNode const& testCaseNode);

  void writeSection(std::string const& className, std::string const& rootName,
                    SectionNode const& sectionNode);

  void writeAssertions(SectionNode const& sectionNode);
  void writeAssertion(AssertionStats const& stats);

  XmlWriter xml;
  Timer suiteTimer;
  std::string stdOutForSuite;
  std::string stdErrForSuite;
  unsigned int unexpectedExceptions = 0;
  bool m_okToFail = false;
};

}  // end namespace Catch

// end catch_reporter_junit.h
// start catch_reporter_xml.h

namespace Catch {
class XmlReporter : public StreamingReporterBase<XmlReporter> {
 public:
  XmlReporter(ReporterConfig const& _config);

  ~XmlReporter() override;

  static std::string getDescription();

  virtual std::string getStylesheetRef() const;

  void writeSourceInfo(SourceLineInfo const& sourceInfo);

 public:  // StreamingReporterBase
  void noMatchingTestCases(std::string const& s) override;

  void testRunStarting(TestRunInfo const& testInfo) override;

  void testGroupStarting(GroupInfo const& groupInfo) override;

  void testCaseStarting(TestCaseInfo const& testInfo) override;

  void sectionStarting(SectionInfo const& sectionInfo) override;

  void assertionStarting(AssertionInfo const&) override;

  bool assertionEnded(AssertionStats const& assertionStats) override;

  void sectionEnded(SectionStats const& sectionStats) override;

  void testCaseEnded(TestCaseStats const& testCaseStats) override;

  void testGroupEnded(TestGroupStats const& testGroupStats) override;

  void testRunEnded(TestRunStats const& testRunStats) override;

 private:
  Timer m_testCaseTimer;
  XmlWriter m_xml;
  int m_sectionDepth = 0;
};

}  // end namespace Catch

// end catch_reporter_xml.h

// end catch_external_interfaces.h
#endif

#endif  // ! CATCH_CONFIG_IMPL_ONLY

#ifdef CATCH_IMPL
// start catch_impl.hpp

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#endif

// Keep these here for external reporters
// start catch_test_case_tracker.h

#include <memory>
#include <string>
#include <vector>

namespace Catch {
namespace TestCaseTracking {

struct NameAndLocation {
  std::string name;
  SourceLineInfo location;

  NameAndLocation(std::string const& _name, SourceLineInfo const& _location);
};

struct ITracker;

using ITrackerPtr = std::shared_ptr<ITracker>;

struct ITracker {
  virtual ~ITracker();

  // static queries
  virtual NameAndLocation const& nameAndLocation() const = 0;

  // dynamic queries
  virtual bool isComplete() const = 0;  // Successfully completed or failed
  virtual bool isSuccessfullyCompleted() const = 0;
  virtual bool isOpen() const = 0;  // Started but not complete
  virtual bool hasChildren() const = 0;

  virtual ITracker& parent() = 0;

  // actions
  virtual void close() = 0;  // Successfully complete
  virtual void fail() = 0;
  virtual void markAsNeedingAnotherRun() = 0;

  virtual void addChild(ITrackerPtr const& child) = 0;
  virtual ITrackerPtr findChild(NameAndLocation const& nameAndLocation) = 0;
  virtual void openChild() = 0;

  // Debug/ checking
  virtual bool isSectionTracker() const = 0;
  virtual bool isIndexTracker() const = 0;
};

class TrackerContext {
  enum RunState { NotStarted, Executing, CompletedCycle };

  ITrackerPtr m_rootTracker;
  ITracker* m_currentTracker = nullptr;
  RunState m_runState = NotStarted;

 public:
  static TrackerContext& instance();

  ITracker& startRun();
  void endRun();

  void startCycle();
  void completeCycle();

  bool completedCycle() const;
  ITracker& currentTracker();
  void setCurrentTracker(ITracker* tracker);
};

class TrackerBase : public ITracker {
 protected:
  enum CycleState {
    NotStarted,
    Executing,
    ExecutingChildren,
    NeedsAnotherRun,
    CompletedSuccessfully,
    Failed
  };

  using Children = std::vector<ITrackerPtr>;
  NameAndLocation m_nameAndLocation;
  TrackerContext& m_ctx;
  ITracker* m_parent;
  Children m_children;
  CycleState m_runState = NotStarted;

 public:
  TrackerBase(NameAndLocation const& nameAndLocation, TrackerContext& ctx,
              ITracker* parent);

  NameAndLocation const& nameAndLocation() const override;
  bool isComplete() const override;
  bool isSuccessfullyCompleted() const override;
  bool isOpen() const override;
  bool hasChildren() const override;

  void addChild(ITrackerPtr const& child) override;

  ITrackerPtr findChild(NameAndLocation const& nameAndLocation) override;
  ITracker& parent() override;

  void openChild() override;

  bool isSectionTracker() const override;
  bool isIndexTracker() const override;

  void open();

  void close() override;
  void fail() override;
  void markAsNeedingAnotherRun() override;

 private:
  void moveToParent();
  void moveToThis();
};

class SectionTracker : public TrackerBase {
  std::vector<std::string> m_filters;

 public:
  SectionTracker(NameAndLocation const& nameAndLocation, TrackerContext& ctx,
                 ITracker* parent);

  bool isSectionTracker() const override;

  static SectionTracker& acquire(TrackerContext& ctx,
                                 NameAndLocation const& nameAndLocation);

  void tryOpen();

  void addInitialFilters(std::vector<std::string> const& filters);
  void addNextFilters(std::vector<std::string> const& filters);
};

class IndexTracker : public TrackerBase {
  int m_size;
  int m_index = -1;

 public:
  IndexTracker(NameAndLocation const& nameAndLocation, TrackerContext& ctx,
               ITracker* parent, int size);

  bool isIndexTracker() const override;
  void close() override;

  static IndexTracker& acquire(TrackerContext& ctx,
                               NameAndLocation const& nameAndLocation,
                               int size);

  int index() const;

  void moveNext();
};

}  // namespace TestCaseTracking

using TestCaseTracking::IndexTracker;
using TestCaseTracking::ITracker;
using TestCaseTracking::SectionTracker;
using TestCaseTracking::TrackerContext;

}  // namespace Catch

// end catch_test_case_tracker.h

// start catch_leak_detector.h

namespace Catch {

struct LeakDetector {
  LeakDetector();
  ~LeakDetector();
};

}  // namespace Catch
// end catch_leak_detector.h
// Cpp files will be included in the single-header file here
// start catch_approx.cpp

#include <cmath>
#include <limits>

namespace {

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
bool marginComparison(double lhs, double rhs, double margin) {
  return (lhs + margin >= rhs) && (rhs + margin >= lhs);
}

}  // namespace

namespace Catch {
namespace Detail {

Approx::Approx(double value)
    : m_epsilon(std::numeric_limits<float>::epsilon() * 100),
      m_margin(0.0),
      m_scale(0.0),
      m_value(value) {}

Approx Approx::custom() { return Approx(0); }

Approx Approx::operator-() const {
  auto temp(*this);
  temp.m_value = -temp.m_value;
  return temp;
}

std::string Approx::toString() const {
  ReusableStringStream rss;
  rss << "Approx( " << ::Catch::Detail::stringify(m_value) << " )";
  return rss.str();
}

bool Approx::equalityComparisonImpl(const double other) const {
  // First try with fixed margin, then compute margin based on epsilon, scale
  // and Approx's value Thanks to Richard Harris for his help refining the
  // scaled margin value
  return marginComparison(m_value, other, m_margin) ||
         marginComparison(m_value, other,
                          m_epsilon * (m_scale + std::fabs(m_value)));
}

void Approx::setMargin(double margin) {
  CATCH_ENFORCE(margin >= 0, "Invalid Approx::margin: "
                                 << margin << '.'
                                 << " Approx::Margin has to be non-negative.");
  m_margin = margin;
}

void Approx::setEpsilon(double epsilon) {
  CATCH_ENFORCE(
      epsilon >= 0 && epsilon <= 1.0,
      "Invalid Approx::epsilon: " << epsilon << '.'
                                  << " Approx::epsilon has to be in [0, 1]");
  m_epsilon = epsilon;
}

}  // end namespace Detail

namespace literals {
Detail::Approx operator"" _a(long double val) { return Detail::Approx(val); }
Detail::Approx operator"" _a(unsigned long long val) {
  return Detail::Approx(val);
}
}  // end namespace literals

std::string StringMaker<Catch::Detail::Approx>::convert(
    Catch::Detail::Approx const& value) {
  return value.toString();
}

}  // end namespace Catch
// end catch_approx.cpp
// start catch_assertionhandler.cpp

// start catch_context.h

#include <memory>

namespace Catch {

struct IResultCapture;
struct IRunner;
struct IConfig;
struct IMutableContext;

using IConfigPtr = std::shared_ptr<IConfig const>;

struct IContext {
  virtual ~IContext();

  virtual IResultCapture* getResultCapture() = 0;
  virtual IRunner* getRunner() = 0;
  virtual IConfigPtr const& getConfig() const = 0;
};

struct IMutableContext : IContext {
  virtual ~IMutableContext();
  virtual void setResultCapture(IResultCapture* resultCapture) = 0;
  virtual void setRunner(IRunner* runner) = 0;
  virtual void setConfig(IConfigPtr const& config) = 0;

 private:
  static IMutableContext* currentContext;
  friend IMutableContext& getCurrentMutableContext();
  friend void cleanUpContext();
  static void createContext();
};

inline IMutableContext& getCurrentMutableContext() {
  if (!IMutableContext::currentContext) IMutableContext::createContext();
  return *IMutableContext::currentContext;
}

inline IContext& getCurrentContext() { return getCurrentMutableContext(); }

void cleanUpContext();
}  // namespace Catch

// end catch_context.h
// start catch_debugger.h

namespace Catch {
bool isDebuggerActive();
}

#ifdef CATCH_PLATFORM_MAC

#define CATCH_TRAP() __asm__("int $3\n" : :) /* NOLINT */

#elif defined(CATCH_PLATFORM_LINUX)
// If we can use inline assembler, do it because this allows us to break
// directly at the location of the failing check instead of breaking inside
// raise() called from it, i.e. one stack frame below.
#if defined(__GNUC__) && (defined(__i386) || defined(__x86_64))
#define CATCH_TRAP() asm volatile("int $3") /* NOLINT */
#else                                       // Fall back to the generic way.
#include <signal.h>

#define CATCH_TRAP() raise(SIGTRAP)
#endif
#elif defined(_MSC_VER)
#define CATCH_TRAP() __debugbreak()
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) void __stdcall DebugBreak();
#define CATCH_TRAP() DebugBreak()
#endif

#ifdef CATCH_TRAP
#define CATCH_BREAK_INTO_DEBUGGER() \
  if (Catch::isDebuggerActive()) { CATCH_TRAP(); }
#else
namespace Catch {
inline void doNothing() {}
}  // namespace Catch
#define CATCH_BREAK_INTO_DEBUGGER() Catch::doNothing()
#endif

// end catch_debugger.h
// start catch_run_context.h

// start catch_fatal_condition.h

// start catch_windows_h_proxy.h

#if defined(CATCH_PLATFORM_WINDOWS)

#if !defined(NOMINMAX) && !defined(CATCH_CONFIG_NO_NOMINMAX)
#define CATCH_DEFINED_NOMINMAX
#define NOMINMAX
#endif
#if !defined(WIN32_LEAN_AND_MEAN) && \
    !defined(CATCH_CONFIG_NO_WIN32_LEAN_AND_MEAN)
#define CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif

#ifdef __AFXDLL
#include <AfxWin.h>
#else
#include <windows.h>
#endif

#ifdef CATCH_DEFINED_NOMINMAX
#undef NOMINMAX
#endif
#ifdef CATCH_DEFINED_WIN32_LEAN_AND_MEAN
#undef WIN32_LEAN_AND_MEAN
#endif

#endif  // defined(CATCH_PLATFORM_WINDOWS)

// end catch_windows_h_proxy.h
#if defined(CATCH_CONFIG_WINDOWS_SEH)

namespace Catch {

struct FatalConditionHandler {
  static LONG CALLBACK
  handleVectoredException(PEXCEPTION_POINTERS ExceptionInfo);
  FatalConditionHandler();
  static void reset();
  ~FatalConditionHandler();

 private:
  static bool isSet;
  static ULONG guaranteeSize;
  static PVOID exceptionHandlerHandle;
};

}  // namespace Catch

#elif defined(CATCH_CONFIG_POSIX_SIGNALS)

#include <signal.h>

namespace Catch {

struct FatalConditionHandler {
  static bool isSet;
  static struct sigaction oldSigActions[];
  static stack_t oldSigStack;
  static char altStackMem[];

  static void handleSignal(int sig);

  FatalConditionHandler();
  ~FatalConditionHandler();
  static void reset();
};

}  // namespace Catch

#else

namespace Catch {
struct FatalConditionHandler {
  void reset();
};
}  // namespace Catch

#endif

// end catch_fatal_condition.h
#include <string>

namespace Catch {

struct IMutableContext;

///////////////////////////////////////////////////////////////////////////

class RunContext : public IResultCapture, public IRunner {
 public:
  RunContext(RunContext const&) = delete;
  RunContext& operator=(RunContext const&) = delete;

  explicit RunContext(IConfigPtr const& _config,
                      IStreamingReporterPtr&& reporter);

  ~RunContext() override;

  void testGroupStarting(std::string const& testSpec, std::size_t groupIndex,
                         std::size_t groupsCount);
  void testGroupEnded(std::string const& testSpec, Totals const& totals,
                      std::size_t groupIndex, std::size_t groupsCount);

  Totals runTest(TestCase const& testCase);

  IConfigPtr config() const;
  IStreamingReporter& reporter() const;

 public:  // IResultCapture
  // Assertion handlers
  void handleExpr(AssertionInfo const& info, ITransientExpression const& expr,
                  AssertionReaction& reaction) override;
  void handleMessage(AssertionInfo const& info, ResultWas::OfType resultType,
                     StringRef const& message,
                     AssertionReaction& reaction) override;
  void handleUnexpectedExceptionNotThrown(AssertionInfo const& info,
                                          AssertionReaction& reaction) override;
  void handleUnexpectedInflightException(AssertionInfo const& info,
                                         std::string const& message,
                                         AssertionReaction& reaction) override;
  void handleIncomplete(AssertionInfo const& info) override;
  void handleNonExpr(AssertionInfo const& info, ResultWas::OfType resultType,
                     AssertionReaction& reaction) override;

  bool sectionStarted(SectionInfo const& sectionInfo,
                      Counts& assertions) override;

  void sectionEnded(SectionEndInfo const& endInfo) override;
  void sectionEndedEarly(SectionEndInfo const& endInfo) override;

  auto acquireGeneratorTracker(SourceLineInfo const& lineInfo)
      -> IGeneratorTracker& override;

  void benchmarkStarting(BenchmarkInfo const& info) override;
  void benchmarkEnded(BenchmarkStats const& stats) override;

  void pushScopedMessage(MessageInfo const& message) override;
  void popScopedMessage(MessageInfo const& message) override;

  std::string getCurrentTestName() const override;

  const AssertionResult* getLastResult() const override;

  void exceptionEarlyReported() override;

  void handleFatalErrorCondition(StringRef message) override;

  bool lastAssertionPassed() override;

  void assertionPassed() override;

 public:
  // !TBD We need to do this another way!
  bool aborting() const final;

 private:
  void runCurrentTest(std::string& redirectedCout, std::string& redirectedCerr);
  void invokeActiveTestCase();

  void resetAssertionInfo();
  bool testForMissingAssertions(Counts& assertions);

  void assertionEnded(AssertionResult const& result);
  void reportExpr(AssertionInfo const& info, ResultWas::OfType resultType,
                  ITransientExpression const* expr, bool negated);

  void populateReaction(AssertionReaction& reaction);

 private:
  void handleUnfinishedSections();

  TestRunInfo m_runInfo;
  IMutableContext& m_context;
  TestCase const* m_activeTestCase = nullptr;
  ITracker* m_testCaseTracker;
  Option<AssertionResult> m_lastResult;

  IConfigPtr m_config;
  Totals m_totals;
  IStreamingReporterPtr m_reporter;
  std::vector<MessageInfo> m_messages;
  AssertionInfo m_lastAssertionInfo;
  std::vector<SectionEndInfo> m_unfinishedSections;
  std::vector<ITracker*> m_activeSections;
  TrackerContext m_trackerContext;
  bool m_lastAssertionPassed = false;
  bool m_shouldReportUnexpected = true;
  bool m_includeSuccessfulResults;
};

}  // end namespace Catch

// end catch_run_context.h
namespace Catch {

namespace {
auto operator<<(std::ostream& os, ITransientExpression const& expr)
    -> std::ostream& {
  expr.streamReconstructedExpression(os);
  return os;
}
}  // namespace

LazyExpression::LazyExpression(bool isNegated) : m_isNegated(isNegated) {}

LazyExpression::LazyExpression(LazyExpression const& other)
    : m_isNegated(other.m_isNegated) {}

LazyExpression::operator bool() const {
  return m_transientExpression != nullptr;
}

auto operator<<(std::ostream& os, LazyExpression const& lazyExpr)
    -> std::ostream& {
  if (lazyExpr.m_isNegated) os << "!";

  if (lazyExpr) {
    if (lazyExpr.m_isNegated &&
        lazyExpr.m_transientExpression->isBinaryExpression())
      os << "(" << *lazyExpr.m_transientExpression << ")";
    else
      os << *lazyExpr.m_transientExpression;
  } else {
    os << "{** error - unchecked empty expression requested **}";
  }
  return os;
}

AssertionHandler::AssertionHandler(StringRef const& macroName,
                                   SourceLineInfo const& lineInfo,
                                   StringRef capturedExpression,
                                   ResultDisposition::Flags resultDisposition)
    : m_assertionInfo{macroName, lineInfo, capturedExpression,
                      resultDisposition},
      m_resultCapture(getResultCapture()) {}

void AssertionHandler::handleExpr(ITransientExpression const& expr) {
  m_resultCapture.handleExpr(m_assertionInfo, expr, m_reaction);
}
void AssertionHandler::handleMessage(ResultWas::OfType resultType,
                                     StringRef const& message) {
  m_resultCapture.handleMessage(m_assertionInfo, resultType, message,
                                m_reaction);
}

auto AssertionHandler::allowThrows() const -> bool {
  return getCurrentContext().getConfig()->allowThrows();
}

void AssertionHandler::complete() {
  setCompleted();
  if (m_reaction.shouldDebugBreak) {
    // If you find your debugger stopping you here then go one level up on the
    // call-stack for the code that caused it (typically a failed assertion)

    // (To go back to the test and change execution, jump over the throw, next)
    CATCH_BREAK_INTO_DEBUGGER();
  }
  if (m_reaction.shouldThrow) {
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
    throw Catch::TestFailureException();
#else
    CATCH_ERROR("Test failure requires aborting test!");
#endif
  }
}
void AssertionHandler::setCompleted() { m_completed = true; }

void AssertionHandler::handleUnexpectedInflightException() {
  m_resultCapture.handleUnexpectedInflightException(
      m_assertionInfo, Catch::translateActiveException(), m_reaction);
}

void AssertionHandler::handleExceptionThrownAsExpected() {
  m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
}
void AssertionHandler::handleExceptionNotThrownAsExpected() {
  m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
}

void AssertionHandler::handleUnexpectedExceptionNotThrown() {
  m_resultCapture.handleUnexpectedExceptionNotThrown(m_assertionInfo,
                                                     m_reaction);
}

void AssertionHandler::handleThrowingCallSkipped() {
  m_resultCapture.handleNonExpr(m_assertionInfo, ResultWas::Ok, m_reaction);
}

// This is the overload that takes a string and infers the Equals matcher from
// it The more general overload, that takes any string matcher, is in
// catch_capture_matchers.cpp
void handleExceptionMatchExpr(AssertionHandler& handler, std::string const& str,
                              StringRef const& matcherString) {
  handleExceptionMatchExpr(handler, Matchers::Equals(str), matcherString);
}

}  // namespace Catch
// end catch_assertionhandler.cpp
// start catch_assertionresult.cpp

namespace Catch {
AssertionResultData::AssertionResultData(ResultWas::OfType _resultType,
                                         LazyExpression const& _lazyExpression)
    : lazyExpression(_lazyExpression), resultType(_resultType) {}

std::string AssertionResultData::reconstructExpression() const {
  if (reconstructedExpression.empty()) {
    if (lazyExpression) {
      ReusableStringStream rss;
      rss << lazyExpression;
      reconstructedExpression = rss.str();
    }
  }
  return reconstructedExpression;
}

AssertionResult::AssertionResult(AssertionInfo const& info,
                                 AssertionResultData const& data)
    : m_info(info), m_resultData(data) {}

// Result was a success
bool AssertionResult::succeeded() const {
  return Catch::isOk(m_resultData.resultType);
}

// Result was a success, or failure is suppressed
bool AssertionResult::isOk() const {
  return Catch::isOk(m_resultData.resultType) ||
         shouldSuppressFailure(m_info.resultDisposition);
}

ResultWas::OfType AssertionResult::getResultType() const {
  return m_resultData.resultType;
}

bool AssertionResult::hasExpression() const {
  return m_info.capturedExpression[0] != 0;
}

bool AssertionResult::hasMessage() const {
  return !m_resultData.message.empty();
}

std::string AssertionResult::getExpression() const {
  if (isFalseTest(m_info.resultDisposition))
    return "!(" + m_info.capturedExpression + ")";
  else
    return m_info.capturedExpression;
}

std::string AssertionResult::getExpressionInMacro() const {
  std::string expr;
  if (m_info.macroName[0] == 0)
    expr = m_info.capturedExpression;
  else {
    expr.reserve(m_info.macroName.size() + m_info.capturedExpression.size() +
                 4);
    expr += m_info.macroName;
    expr += "( ";
    expr += m_info.capturedExpression;
    expr += " )";
  }
  return expr;
}

bool AssertionResult::hasExpandedExpression() const {
  return hasExpression() && getExpandedExpression() != getExpression();
}

std::string AssertionResult::getExpandedExpression() const {
  std::string expr = m_resultData.reconstructExpression();
  return expr.empty() ? getExpression() : expr;
}

std::string AssertionResult::getMessage() const { return m_resultData.message; }
SourceLineInfo AssertionResult::getSourceInfo() const {
  return m_info.lineInfo;
}

StringRef AssertionResult::getTestMacroName() const { return m_info.macroName; }

}  // end namespace Catch
// end catch_assertionresult.cpp
// start catch_benchmark.cpp

namespace Catch {

auto BenchmarkLooper::getResolution() -> uint64_t {
  return getEstimatedClockResolution() *
         getCurrentContext().getConfig()->benchmarkResolutionMultiple();
}

void BenchmarkLooper::reportStart() {
  getResultCapture().benchmarkStarting({m_name});
}
auto BenchmarkLooper::needsMoreIterations() -> bool {
  auto elapsed = m_timer.getElapsedNanoseconds();

  // Exponentially increasing iterations until we're confident in our timer
  // resolution
  if (elapsed < m_resolution) {
    m_iterationsToRun *= 10;
    return true;
  }

  getResultCapture().benchmarkEnded({{m_name}, m_count, elapsed});
  return false;
}

}  // end namespace Catch
// end catch_benchmark.cpp
// start catch_capture_matchers.cpp

namespace Catch {

using StringMatcher = Matchers::Impl::MatcherBase<std::string>;

// This is the general overload that takes a any string matcher
// There is another overload, in catch_assertionhandler.h/.cpp, that only takes
// a string and infers the Equals matcher (so the header does not mention
// matchers)
void handleExceptionMatchExpr(AssertionHandler& handler,
                              StringMatcher const& matcher,
                              StringRef const& matcherString) {
  std::string exceptionMessage = Catch::translateActiveException();
  MatchExpr<std::string, StringMatcher const&> expr(exceptionMessage, matcher,
                                                    matcherString);
  handler.handleExpr(expr);
}

}  // namespace Catch
// end catch_capture_matchers.cpp
// start catch_commandline.cpp

// start catch_commandline.h

// start catch_clara.h

// Use Catch's value for console width (store Clara's off to the side, if
// present)
#ifdef CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH \
  CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#undef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#endif
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH CATCH_CONFIG_CONSOLE_WIDTH - 1

#ifdef __clang__
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wweak-vtables"
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#pragma clang diagnostic ignored "-Wshadow"
#endif

// start clara.hpp
// Copyright 2017 Two Blue Cubes Ltd. All rights reserved.
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// See https://github.com/philsquared/Clara for more details

// Clara v1.1.5

#ifndef CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_CONFIG_CONSOLE_WIDTH 80
#endif

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH \
  CATCH_CLARA_CONFIG_CONSOLE_WIDTH
#endif

#ifndef CLARA_CONFIG_OPTIONAL_TYPE
#ifdef __has_include
#if __has_include(<optional>) && __cplusplus >= 201703L
#include <optional>
#define CLARA_CONFIG_OPTIONAL_TYPE std::optional
#endif
#endif
#endif

// ----------- #included from clara_textflow.hpp -----------

// TextFlowCpp
//
// A single-header library for wrapping and laying out basic text, by Phil Nash
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
// This project is hosted at https://github.com/philsquared/textflowcpp

#include <cassert>
#include <ostream>
#include <sstream>
#include <vector>

#ifndef CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH 80
#endif

namespace Catch {
namespace clara {
namespace TextFlow {

inline auto isWhitespace(char c) -> bool {
  static std::string chars = " \t\n\r";
  return chars.find(c) != std::string::npos;
}
inline auto isBreakableBefore(char c) -> bool {
  static std::string chars = "[({<|";
  return chars.find(c) != std::string::npos;
}
inline auto isBreakableAfter(char c) -> bool {
  static std::string chars = "])}>.,:;*+-=&/\\";
  return chars.find(c) != std::string::npos;
}

class Columns;

class Column {
  std::vector<std::string> m_strings;
  size_t m_width = CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH;
  size_t m_indent = 0;
  size_t m_initialIndent = std::string::npos;

 public:
  class iterator {
    friend Column;

    Column const& m_column;
    size_t m_stringIndex = 0;
    size_t m_pos = 0;

    size_t m_len = 0;
    size_t m_end = 0;
    bool m_suffix = false;

    iterator(Column const& column, size_t stringIndex)
        : m_column(column), m_stringIndex(stringIndex) {}

    auto line() const -> std::string const& {
      return m_column.m_strings[m_stringIndex];
    }

    auto isBoundary(size_t at) const -> bool {
      assert(at > 0);
      assert(at <= line().size());

      return at == line().size() ||
             (isWhitespace(line()[at]) && !isWhitespace(line()[at - 1])) ||
             isBreakableBefore(line()[at]) || isBreakableAfter(line()[at - 1]);
    }

    void calcLength() {
      assert(m_stringIndex < m_column.m_strings.size());

      m_suffix = false;
      auto width = m_column.m_width - indent();
      m_end = m_pos;
      while (m_end < line().size() && line()[m_end] != '\n') ++m_end;

      if (m_end < m_pos + width) {
        m_len = m_end - m_pos;
      } else {
        size_t len = width;
        while (len > 0 && !isBoundary(m_pos + len)) --len;
        while (len > 0 && isWhitespace(line()[m_pos + len - 1])) --len;

        if (len > 0) {
          m_len = len;
        } else {
          m_suffix = true;
          m_len = width - 1;
        }
      }
    }

    auto indent() const -> size_t {
      auto initial = m_pos == 0 && m_stringIndex == 0 ? m_column.m_initialIndent
                                                      : std::string::npos;
      return initial == std::string::npos ? m_column.m_indent : initial;
    }

    auto addIndentAndSuffix(std::string const& plain) const -> std::string {
      return std::string(indent(), ' ') + (m_suffix ? plain + "-" : plain);
    }

   public:
    using difference_type = std::ptrdiff_t;
    using value_type = std::string;
    using pointer = value_type*;
    using reference = value_type&;
    using iterator_category = std::forward_iterator_tag;

    explicit iterator(Column const& column) : m_column(column) {
      assert(m_column.m_width > m_column.m_indent);
      assert(m_column.m_initialIndent == std::string::npos ||
             m_column.m_width > m_column.m_initialIndent);
      calcLength();
      if (m_len == 0) m_stringIndex++;  // Empty string
    }

    auto operator*() const -> std::string {
      assert(m_stringIndex < m_column.m_strings.size());
      assert(m_pos <= m_end);
      return addIndentAndSuffix(line().substr(m_pos, m_len));
    }

    auto operator++() -> iterator& {
      m_pos += m_len;
      if (m_pos < line().size() && line()[m_pos] == '\n')
        m_pos += 1;
      else
        while (m_pos < line().size() && isWhitespace(line()[m_pos])) ++m_pos;

      if (m_pos == line().size()) {
        m_pos = 0;
        ++m_stringIndex;
      }
      if (m_stringIndex < m_column.m_strings.size()) calcLength();
      return *this;
    }
    auto operator++(int) -> iterator {
      iterator prev(*this);
      operator++();
      return prev;
    }

    auto operator==(iterator const& other) const -> bool {
      return m_pos == other.m_pos && m_stringIndex == other.m_stringIndex &&
             &m_column == &other.m_column;
    }
    auto operator!=(iterator const& other) const -> bool {
      return !operator==(other);
    }
  };
  using const_iterator = iterator;

  explicit Column(std::string const& text) { m_strings.push_back(text); }

  auto width(size_t newWidth) -> Column& {
    assert(newWidth > 0);
    m_width = newWidth;
    return *this;
  }
  auto indent(size_t newIndent) -> Column& {
    m_indent = newIndent;
    return *this;
  }
  auto initialIndent(size_t newIndent) -> Column& {
    m_initialIndent = newIndent;
    return *this;
  }

  auto width() const -> size_t { return m_width; }
  auto begin() const -> iterator { return iterator(*this); }
  auto end() const -> iterator { return {*this, m_strings.size()}; }

  inline friend std::ostream& operator<<(std::ostream& os, Column const& col) {
    bool first = true;
    for (auto line : col) {
      if (first)
        first = false;
      else
        os << "\n";
      os << line;
    }
    return os;
  }

  auto operator+(Column const& other) -> Columns;

  auto toString() const -> std::string {
    std::ostringstream oss;
    oss << *this;
    return oss.str();
  }
};

class Spacer : public Column {
 public:
  explicit Spacer(size_t spaceWidth) : Column("") { width(spaceWidth); }
};

class Columns {
  std::vector<Column> m_columns;

 public:
  class iterator {
    friend Columns;
    struct EndTag {};

    std::vector<Column> const& m_columns;
    std::vector<Column::iterator> m_iterators;
    size_t m_activeIterators;

    iterator(Columns const& columns, EndTag)
        : m_columns(columns.m_columns), m_activeIterators(0) {
      m_iterators.reserve(m_columns.size());

      for (auto const& col : m_columns) m_iterators.push_back(col.end());
    }

   public:
    using difference_type = std::ptrdiff_t;
    using value_type = std::string;
    using pointer = value_type*;
    using reference = value_type&;
    using iterator_category = std::forward_iterator_tag;

    explicit iterator(Columns const& columns)
        : m_columns(columns.m_columns), m_activeIterators(m_columns.size()) {
      m_iterators.reserve(m_columns.size());

      for (auto const& col : m_columns) m_iterators.push_back(col.begin());
    }

    auto operator==(iterator const& other) const -> bool {
      return m_iterators == other.m_iterators;
    }
    auto operator!=(iterator const& other) const -> bool {
      return m_iterators != other.m_iterators;
    }
    auto operator*() const -> std::string {
      std::string row, padding;

      for (size_t i = 0; i < m_columns.size(); ++i) {
        auto width = m_columns[i].width();
        if (m_iterators[i] != m_columns[i].end()) {
          std::string col = *m_iterators[i];
          row += padding + col;
          if (col.size() < width)
            padding = std::string(width - col.size(), ' ');
          else
            padding = "";
        } else {
          padding += std::string(width, ' ');
        }
      }
      return row;
    }
    auto operator++() -> iterator& {
      for (size_t i = 0; i < m_columns.size(); ++i) {
        if (m_iterators[i] != m_columns[i].end()) ++m_iterators[i];
      }
      return *this;
    }
    auto operator++(int) -> iterator {
      iterator prev(*this);
      operator++();
      return prev;
    }
  };
  using const_iterator = iterator;

  auto begin() const -> iterator { return iterator(*this); }
  auto end() const -> iterator { return {*this, iterator::EndTag()}; }

  auto operator+=(Column const& col) -> Columns& {
    m_columns.push_back(col);
    return *this;
  }
  auto operator+(Column const& col) -> Columns {
    Columns combined = *this;
    combined += col;
    return combined;
  }

  inline friend std::ostream& operator<<(std::ostream& os,
                                         Columns const& cols) {
    bool first = true;
    for (auto line : cols) {
      if (first)
        first = false;
      else
        os << "\n";
      os << line;
    }
    return os;
  }

  auto toString() const -> std::string {
    std::ostringstream oss;
    oss << *this;
    return oss.str();
  }
};

inline auto Column::operator+(Column const& other) -> Columns {
  Columns cols;
  cols += *this;
  cols += other;
  return cols;
}
}  // namespace TextFlow

}  // namespace clara
}  // namespace Catch

// ----------- end of #include from clara_textflow.hpp -----------
// ........... back in clara.hpp

#include <algorithm>
#include <memory>
#include <set>
#include <string>

#if !defined(CATCH_PLATFORM_WINDOWS) &&                         \
    (defined(WIN32) || defined(__WIN32__) || defined(_WIN32) || \
     defined(_MSC_VER))
#define CATCH_PLATFORM_WINDOWS
#endif

namespace Catch {
namespace clara {
namespace detail {

// Traits for extracting arg and return type of lambdas (for single argument
// lambdas)
template <typename L>
struct UnaryLambdaTraits : UnaryLambdaTraits<decltype(&L::operator())> {};

template <typename ClassT, typename ReturnT, typename... Args>
struct UnaryLambdaTraits<ReturnT (ClassT::*)(Args...) const> {
  static const bool isValid = false;
};

template <typename ClassT, typename ReturnT, typename ArgT>
struct UnaryLambdaTraits<ReturnT (ClassT::*)(ArgT) const> {
  static const bool isValid = true;
  using ArgType = typename std::remove_const<
      typename std::remove_reference<ArgT>::type>::type;
  using ReturnType = ReturnT;
};

class TokenStream;

// Transport for raw args (copied from main args, or supplied via init list for
// testing)
class Args {
  friend TokenStream;
  std::string m_exeName;
  std::vector<std::string> m_args;

 public:
  Args(int argc, char const* const* argv)
      : m_exeName(argv[0]), m_args(argv + 1, argv + argc) {}

  Args(std::initializer_list<std::string> args)
      : m_exeName(*args.begin()), m_args(args.begin() + 1, args.end()) {}

  auto exeName() const -> std::string { return m_exeName; }
};

// Wraps a token coming from a token stream. These may not directly correspond
// to strings as a single string may encode an option + its argument if the : or
// = form is used
enum class TokenType { Option, Argument };
struct Token {
  TokenType type;
  std::string token;
};

inline auto isOptPrefix(char c) -> bool {
  return c == '-'
#ifdef CATCH_PLATFORM_WINDOWS
         || c == '/'
#endif
      ;
}

// Abstracts iterators into args as a stream of tokens, with option arguments
// uniformly handled
class TokenStream {
  using Iterator = std::vector<std::string>::const_iterator;
  Iterator it;
  Iterator itEnd;
  std::vector<Token> m_tokenBuffer;

  void loadBuffer() {
    m_tokenBuffer.resize(0);

    // Skip any empty strings
    while (it != itEnd && it->empty()) ++it;

    if (it != itEnd) {
      auto const& next = *it;
      if (isOptPrefix(next[0])) {
        auto delimiterPos = next.find_first_of(" :=");
        if (delimiterPos != std::string::npos) {
          m_tokenBuffer.push_back(
              {TokenType::Option, next.substr(0, delimiterPos)});
          m_tokenBuffer.push_back(
              {TokenType::Argument, next.substr(delimiterPos + 1)});
        } else {
          if (next[1] != '-' && next.size() > 2) {
            std::string opt = "- ";
            for (size_t i = 1; i < next.size(); ++i) {
              opt[1] = next[i];
              m_tokenBuffer.push_back({TokenType::Option, opt});
            }
          } else {
            m_tokenBuffer.push_back({TokenType::Option, next});
          }
        }
      } else {
        m_tokenBuffer.push_back({TokenType::Argument, next});
      }
    }
  }

 public:
  explicit TokenStream(Args const& args)
      : TokenStream(args.m_args.begin(), args.m_args.end()) {}

  TokenStream(Iterator it, Iterator itEnd) : it(it), itEnd(itEnd) {
    loadBuffer();
  }

  explicit operator bool() const {
    return !m_tokenBuffer.empty() || it != itEnd;
  }

  auto count() const -> size_t { return m_tokenBuffer.size() + (itEnd - it); }

  auto operator*() const -> Token {
    assert(!m_tokenBuffer.empty());
    return m_tokenBuffer.front();
  }

  auto operator->() const -> Token const* {
    assert(!m_tokenBuffer.empty());
    return &m_tokenBuffer.front();
  }

  auto operator++() -> TokenStream& {
    if (m_tokenBuffer.size() >= 2) {
      m_tokenBuffer.erase(m_tokenBuffer.begin());
    } else {
      if (it != itEnd) ++it;
      loadBuffer();
    }
    return *this;
  }
};

class ResultBase {
 public:
  enum Type { Ok, LogicError, RuntimeError };

 protected:
  ResultBase(Type type) : m_type(type) {}
  virtual ~ResultBase() = default;

  virtual void enforceOk() const = 0;

  Type m_type;
};

template <typename T>
class ResultValueBase : public ResultBase {
 public:
  auto value() const -> T const& {
    enforceOk();
    return m_value;
  }

 protected:
  ResultValueBase(Type type) : ResultBase(type) {}

  ResultValueBase(ResultValueBase const& other) : ResultBase(other) {
    if (m_type == ResultBase::Ok) new (&m_value) T(other.m_value);
  }

  ResultValueBase(Type, T const& value) : ResultBase(Ok) {
    new (&m_value) T(value);
  }

  auto operator=(ResultValueBase const& other) -> ResultValueBase& {
    if (m_type == ResultBase::Ok) m_value.~T();
    ResultBase::operator=(other);
    if (m_type == ResultBase::Ok) new (&m_value) T(other.m_value);
    return *this;
  }

  ~ResultValueBase() override {
    if (m_type == Ok) m_value.~T();
  }

  union {
    T m_value;
  };
};

template <>
class ResultValueBase<void> : public ResultBase {
 protected:
  using ResultBase::ResultBase;
};

template <typename T = void>
class BasicResult : public ResultValueBase<T> {
 public:
  template <typename U>
  explicit BasicResult(BasicResult<U> const& other)
      : ResultValueBase<T>(other.type()), m_errorMessage(other.errorMessage()) {
    assert(type() != ResultBase::Ok);
  }

  template <typename U>
  static auto ok(U const& value) -> BasicResult {
    return {ResultBase::Ok, value};
  }
  static auto ok() -> BasicResult { return {ResultBase::Ok}; }
  static auto logicError(std::string const& message) -> BasicResult {
    return {ResultBase::LogicError, message};
  }
  static auto runtimeError(std::string const& message) -> BasicResult {
    return {ResultBase::RuntimeError, message};
  }

  explicit operator bool() const { return m_type == ResultBase::Ok; }
  auto type() const -> ResultBase::Type { return m_type; }
  auto errorMessage() const -> std::string { return m_errorMessage; }

 protected:
  void enforceOk() const override {
    // Errors shouldn't reach this point, but if they do
    // the actual error message will be in m_errorMessage
    assert(m_type != ResultBase::LogicError);
    assert(m_type != ResultBase::RuntimeError);
    if (m_type != ResultBase::Ok) std::abort();
  }

  std::string m_errorMessage;  // Only populated if resultType is an error

  BasicResult(ResultBase::Type type, std::string const& message)
      : ResultValueBase<T>(type), m_errorMessage(message) {
    assert(m_type != ResultBase::Ok);
  }

  using ResultValueBase<T>::ResultValueBase;
  using ResultBase::m_type;
};

enum class ParseResultType {
  Matched,
  NoMatch,
  ShortCircuitAll,
  ShortCircuitSame
};

class ParseState {
 public:
  ParseState(ParseResultType type, TokenStream const& remainingTokens)
      : m_type(type), m_remainingTokens(remainingTokens) {}

  auto type() const -> ParseResultType { return m_type; }
  auto remainingTokens() const -> TokenStream { return m_remainingTokens; }

 private:
  ParseResultType m_type;
  TokenStream m_remainingTokens;
};

using Result = BasicResult<void>;
using ParserResult = BasicResult<ParseResultType>;
using InternalParseResult = BasicResult<ParseState>;

struct HelpColumns {
  std::string left;
  std::string right;
};

template <typename T>
inline auto convertInto(std::string const& source, T& target) -> ParserResult {
  std::stringstream ss;
  ss << source;
  ss >> target;
  if (ss.fail())
    return ParserResult::runtimeError("Unable to convert '" + source +
                                      "' to destination type");
  else
    return ParserResult::ok(ParseResultType::Matched);
}
inline auto convertInto(std::string const& source, std::string& target)
    -> ParserResult {
  target = source;
  return ParserResult::ok(ParseResultType::Matched);
}
inline auto convertInto(std::string const& source, bool& target)
    -> ParserResult {
  std::string srcLC = source;
  std::transform(srcLC.begin(), srcLC.end(), srcLC.begin(),
                 [](char c) { return static_cast<char>(::tolower(c)); });
  if (srcLC == "y" || srcLC == "1" || srcLC == "true" || srcLC == "yes" ||
      srcLC == "on")
    target = true;
  else if (srcLC == "n" || srcLC == "0" || srcLC == "false" || srcLC == "no" ||
           srcLC == "off")
    target = false;
  else
    return ParserResult::runtimeError(
        "Expected a boolean value but did not recognise: '" + source + "'");
  return ParserResult::ok(ParseResultType::Matched);
}
#ifdef CLARA_CONFIG_OPTIONAL_TYPE
template <typename T>
inline auto convertInto(std::string const& source,
                        CLARA_CONFIG_OPTIONAL_TYPE<T>& target) -> ParserResult {
  T temp;
  auto result = convertInto(source, temp);
  if (result) target = std::move(temp);
  return result;
}
#endif  // CLARA_CONFIG_OPTIONAL_TYPE

struct NonCopyable {
  NonCopyable() = default;
  NonCopyable(NonCopyable const&) = delete;
  NonCopyable(NonCopyable&&) = delete;
  NonCopyable& operator=(NonCopyable const&) = delete;
  NonCopyable& operator=(NonCopyable&&) = delete;
};

struct BoundRef : NonCopyable {
  virtual ~BoundRef() = default;
  virtual auto isContainer() const -> bool { return false; }
  virtual auto isFlag() const -> bool { return false; }
};
struct BoundValueRefBase : BoundRef {
  virtual auto setValue(std::string const& arg) -> ParserResult = 0;
};
struct BoundFlagRefBase : BoundRef {
  virtual auto setFlag(bool flag) -> ParserResult = 0;
  virtual auto isFlag() const -> bool { return true; }
};

template <typename T>
struct BoundValueRef : BoundValueRefBase {
  T& m_ref;

  explicit BoundValueRef(T& ref) : m_ref(ref) {}

  auto setValue(std::string const& arg) -> ParserResult override {
    return convertInto(arg, m_ref);
  }
};

template <typename T>
struct BoundValueRef<std::vector<T>> : BoundValueRefBase {
  std::vector<T>& m_ref;

  explicit BoundValueRef(std::vector<T>& ref) : m_ref(ref) {}

  auto isContainer() const -> bool override { return true; }

  auto setValue(std::string const& arg) -> ParserResult override {
    T temp;
    auto result = convertInto(arg, temp);
    if (result) m_ref.push_back(temp);
    return result;
  }
};

struct BoundFlagRef : BoundFlagRefBase {
  bool& m_ref;

  explicit BoundFlagRef(bool& ref) : m_ref(ref) {}

  auto setFlag(bool flag) -> ParserResult override {
    m_ref = flag;
    return ParserResult::ok(ParseResultType::Matched);
  }
};

template <typename ReturnType>
struct LambdaInvoker {
  static_assert(std::is_same<ReturnType, ParserResult>::value,
                "Lambda must return void or clara::ParserResult");

  template <typename L, typename ArgType>
  static auto invoke(L const& lambda, ArgType const& arg) -> ParserResult {
    return lambda(arg);
  }
};

template <>
struct LambdaInvoker<void> {
  template <typename L, typename ArgType>
  static auto invoke(L const& lambda, ArgType const& arg) -> ParserResult {
    lambda(arg);
    return ParserResult::ok(ParseResultType::Matched);
  }
};

template <typename ArgType, typename L>
inline auto invokeLambda(L const& lambda, std::string const& arg)
    -> ParserResult {
  ArgType temp{};
  auto result = convertInto(arg, temp);
  return !result
             ? result
             : LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(
                   lambda, temp);
}

template <typename L>
struct BoundLambda : BoundValueRefBase {
  L m_lambda;

  static_assert(UnaryLambdaTraits<L>::isValid,
                "Supplied lambda must take exactly one argument");
  explicit BoundLambda(L const& lambda) : m_lambda(lambda) {}

  auto setValue(std::string const& arg) -> ParserResult override {
    return invokeLambda<typename UnaryLambdaTraits<L>::ArgType>(m_lambda, arg);
  }
};

template <typename L>
struct BoundFlagLambda : BoundFlagRefBase {
  L m_lambda;

  static_assert(UnaryLambdaTraits<L>::isValid,
                "Supplied lambda must take exactly one argument");
  static_assert(
      std::is_same<typename UnaryLambdaTraits<L>::ArgType, bool>::value,
      "flags must be boolean");

  explicit BoundFlagLambda(L const& lambda) : m_lambda(lambda) {}

  auto setFlag(bool flag) -> ParserResult override {
    return LambdaInvoker<typename UnaryLambdaTraits<L>::ReturnType>::invoke(
        m_lambda, flag);
  }
};

enum class Optionality { Optional, Required };

struct Parser;

class ParserBase {
 public:
  virtual ~ParserBase() = default;
  virtual auto validate() const -> Result { return Result::ok(); }
  virtual auto parse(std::string const& exeName,
                     TokenStream const& tokens) const
      -> InternalParseResult = 0;
  virtual auto cardinality() const -> size_t { return 1; }

  auto parse(Args const& args) const -> InternalParseResult {
    return parse(args.exeName(), TokenStream(args));
  }
};

template <typename DerivedT>
class ComposableParserImpl : public ParserBase {
 public:
  template <typename T>
  auto operator|(T const& other) const -> Parser;

  template <typename T>
  auto operator+(T const& other) const -> Parser;
};

// Common code and state for Args and Opts
template <typename DerivedT>
class ParserRefImpl : public ComposableParserImpl<DerivedT> {
 protected:
  Optionality m_optionality = Optionality::Optional;
  std::shared_ptr<BoundRef> m_ref;
  std::string m_hint;
  std::string m_description;

  explicit ParserRefImpl(std::shared_ptr<BoundRef> const& ref) : m_ref(ref) {}

 public:
  template <typename T>
  ParserRefImpl(T& ref, std::string const& hint)
      : m_ref(std::make_shared<BoundValueRef<T>>(ref)), m_hint(hint) {}

  template <typename LambdaT>
  ParserRefImpl(LambdaT const& ref, std::string const& hint)
      : m_ref(std::make_shared<BoundLambda<LambdaT>>(ref)), m_hint(hint) {}

  auto operator()(std::string const& description) -> DerivedT& {
    m_description = description;
    return static_cast<DerivedT&>(*this);
  }

  auto optional() -> DerivedT& {
    m_optionality = Optionality::Optional;
    return static_cast<DerivedT&>(*this);
  };

  auto required() -> DerivedT& {
    m_optionality = Optionality::Required;
    return static_cast<DerivedT&>(*this);
  };

  auto isOptional() const -> bool {
    return m_optionality == Optionality::Optional;
  }

  auto cardinality() const -> size_t override {
    if (m_ref->isContainer())
      return 0;
    else
      return 1;
  }

  auto hint() const -> std::string { return m_hint; }
};

class ExeName : public ComposableParserImpl<ExeName> {
  std::shared_ptr<std::string> m_name;
  std::shared_ptr<BoundValueRefBase> m_ref;

  template <typename LambdaT>
  static auto makeRef(LambdaT const& lambda)
      -> std::shared_ptr<BoundValueRefBase> {
    return std::make_shared<BoundLambda<LambdaT>>(lambda);
  }

 public:
  ExeName() : m_name(std::make_shared<std::string>("<executable>")) {}

  explicit ExeName(std::string& ref) : ExeName() {
    m_ref = std::make_shared<BoundValueRef<std::string>>(ref);
  }

  template <typename LambdaT>
  explicit ExeName(LambdaT const& lambda) : ExeName() {
    m_ref = std::make_shared<BoundLambda<LambdaT>>(lambda);
  }

  // The exe name is not parsed out of the normal tokens, but is handled
  // specially
  auto parse(std::string const&, TokenStream const& tokens) const
      -> InternalParseResult override {
    return InternalParseResult::ok(
        ParseState(ParseResultType::NoMatch, tokens));
  }

  auto name() const -> std::string { return *m_name; }
  auto set(std::string const& newName) -> ParserResult {
    auto lastSlash = newName.find_last_of("\\/");
    auto filename = (lastSlash == std::string::npos)
                        ? newName
                        : newName.substr(lastSlash + 1);

    *m_name = filename;
    if (m_ref)
      return m_ref->setValue(filename);
    else
      return ParserResult::ok(ParseResultType::Matched);
  }
};

class Arg : public ParserRefImpl<Arg> {
 public:
  using ParserRefImpl::ParserRefImpl;

  auto parse(std::string const&, TokenStream const& tokens) const
      -> InternalParseResult override {
    auto validationResult = validate();
    if (!validationResult) return InternalParseResult(validationResult);

    auto remainingTokens = tokens;
    auto const& token = *remainingTokens;
    if (token.type != TokenType::Argument)
      return InternalParseResult::ok(
          ParseState(ParseResultType::NoMatch, remainingTokens));

    assert(!m_ref->isFlag());
    auto valueRef = static_cast<detail::BoundValueRefBase*>(m_ref.get());

    auto result = valueRef->setValue(remainingTokens->token);
    if (!result)
      return InternalParseResult(result);
    else
      return InternalParseResult::ok(
          ParseState(ParseResultType::Matched, ++remainingTokens));
  }
};

inline auto normaliseOpt(std::string const& optName) -> std::string {
#ifdef CATCH_PLATFORM_WINDOWS
  if (optName[0] == '/')
    return "-" + optName.substr(1);
  else
#endif
    return optName;
}

class Opt : public ParserRefImpl<Opt> {
 protected:
  std::vector<std::string> m_optNames;

 public:
  template <typename LambdaT>
  explicit Opt(LambdaT const& ref)
      : ParserRefImpl(std::make_shared<BoundFlagLambda<LambdaT>>(ref)) {}

  explicit Opt(bool& ref)
      : ParserRefImpl(std::make_shared<BoundFlagRef>(ref)) {}

  template <typename LambdaT>
  Opt(LambdaT const& ref, std::string const& hint) : ParserRefImpl(ref, hint) {}

  template <typename T>
  Opt(T& ref, std::string const& hint) : ParserRefImpl(ref, hint) {}

  auto operator[](std::string const& optName) -> Opt& {
    m_optNames.push_back(optName);
    return *this;
  }

  auto getHelpColumns() const -> std::vector<HelpColumns> {
    std::ostringstream oss;
    bool first = true;
    for (auto const& opt : m_optNames) {
      if (first)
        first = false;
      else
        oss << ", ";
      oss << opt;
    }
    if (!m_hint.empty()) oss << " <" << m_hint << ">";
    return {{oss.str(), m_description}};
  }

  auto isMatch(std::string const& optToken) const -> bool {
    auto normalisedToken = normaliseOpt(optToken);
    for (auto const& name : m_optNames) {
      if (normaliseOpt(name) == normalisedToken) return true;
    }
    return false;
  }

  using ParserBase::parse;

  auto parse(std::string const&, TokenStream const& tokens) const
      -> InternalParseResult override {
    auto validationResult = validate();
    if (!validationResult) return InternalParseResult(validationResult);

    auto remainingTokens = tokens;
    if (remainingTokens && remainingTokens->type == TokenType::Option) {
      auto const& token = *remainingTokens;
      if (isMatch(token.token)) {
        if (m_ref->isFlag()) {
          auto flagRef = static_cast<detail::BoundFlagRefBase*>(m_ref.get());
          auto result = flagRef->setFlag(true);
          if (!result) return InternalParseResult(result);
          if (result.value() == ParseResultType::ShortCircuitAll)
            return InternalParseResult::ok(
                ParseState(result.value(), remainingTokens));
        } else {
          auto valueRef = static_cast<detail::BoundValueRefBase*>(m_ref.get());
          ++remainingTokens;
          if (!remainingTokens)
            return InternalParseResult::runtimeError(
                "Expected argument following " + token.token);
          auto const& argToken = *remainingTokens;
          if (argToken.type != TokenType::Argument)
            return InternalParseResult::runtimeError(
                "Expected argument following " + token.token);
          auto result = valueRef->setValue(argToken.token);
          if (!result) return InternalParseResult(result);
          if (result.value() == ParseResultType::ShortCircuitAll)
            return InternalParseResult::ok(
                ParseState(result.value(), remainingTokens));
        }
        return InternalParseResult::ok(
            ParseState(ParseResultType::Matched, ++remainingTokens));
      }
    }
    return InternalParseResult::ok(
        ParseState(ParseResultType::NoMatch, remainingTokens));
  }

  auto validate() const -> Result override {
    if (m_optNames.empty())
      return Result::logicError("No options supplied to Opt");
    for (auto const& name : m_optNames) {
      if (name.empty())
        return Result::logicError("Option name cannot be empty");
#ifdef CATCH_PLATFORM_WINDOWS
      if (name[0] != '-' && name[0] != '/')
        return Result::logicError("Option name must begin with '-' or '/'");
#else
      if (name[0] != '-')
        return Result::logicError("Option name must begin with '-'");
#endif
    }
    return ParserRefImpl::validate();
  }
};

struct Help : Opt {
  Help(bool& showHelpFlag)
      : Opt([&](bool flag) {
          showHelpFlag = flag;
          return ParserResult::ok(ParseResultType::ShortCircuitAll);
        }) {
    static_cast<Opt&> (*this)("display usage information")["-?"]["-h"]["--help"]
        .optional();
  }
};

struct Parser : ParserBase {
  mutable ExeName m_exeName;
  std::vector<Opt> m_options;
  std::vector<Arg> m_args;

  auto operator|=(ExeName const& exeName) -> Parser& {
    m_exeName = exeName;
    return *this;
  }

  auto operator|=(Arg const& arg) -> Parser& {
    m_args.push_back(arg);
    return *this;
  }

  auto operator|=(Opt const& opt) -> Parser& {
    m_options.push_back(opt);
    return *this;
  }

  auto operator|=(Parser const& other) -> Parser& {
    m_options.insert(m_options.end(), other.m_options.begin(),
                     other.m_options.end());
    m_args.insert(m_args.end(), other.m_args.begin(), other.m_args.end());
    return *this;
  }

  template <typename T>
  auto operator|(T const& other) const -> Parser {
    return Parser(*this) |= other;
  }

  // Forward deprecated interface with '+' instead of '|'
  template <typename T>
  auto operator+=(T const& other) -> Parser& {
    return operator|=(other);
  }
  template <typename T>
  auto operator+(T const& other) const -> Parser {
    return operator|(other);
  }

  auto getHelpColumns() const -> std::vector<HelpColumns> {
    std::vector<HelpColumns> cols;
    for (auto const& o : m_options) {
      auto childCols = o.getHelpColumns();
      cols.insert(cols.end(), childCols.begin(), childCols.end());
    }
    return cols;
  }

  void writeToStream(std::ostream& os) const {
    if (!m_exeName.name().empty()) {
      os << "usage:\n"
         << "  " << m_exeName.name() << " ";
      bool required = true, first = true;
      for (auto const& arg : m_args) {
        if (first)
          first = false;
        else
          os << " ";
        if (arg.isOptional() && required) {
          os << "[";
          required = false;
        }
        os << "<" << arg.hint() << ">";
        if (arg.cardinality() == 0) os << " ... ";
      }
      if (!required) os << "]";
      if (!m_options.empty()) os << " options";
      os << "\n\nwhere options are:" << std::endl;
    }

    auto rows = getHelpColumns();
    size_t consoleWidth = CATCH_CLARA_CONFIG_CONSOLE_WIDTH;
    size_t optWidth = 0;
    for (auto const& cols : rows)
      optWidth = (std::max)(optWidth, cols.left.size() + 2);

    optWidth = (std::min)(optWidth, consoleWidth / 2);

    for (auto const& cols : rows) {
      auto row =
          TextFlow::Column(cols.left).width(optWidth).indent(2) +
          TextFlow::Spacer(4) +
          TextFlow::Column(cols.right).width(consoleWidth - 7 - optWidth);
      os << row << std::endl;
    }
  }

  friend auto operator<<(std::ostream& os, Parser const& parser)
      -> std::ostream& {
    parser.writeToStream(os);
    return os;
  }

  auto validate() const -> Result override {
    for (auto const& opt : m_options) {
      auto result = opt.validate();
      if (!result) return result;
    }
    for (auto const& arg : m_args) {
      auto result = arg.validate();
      if (!result) return result;
    }
    return Result::ok();
  }

  using ParserBase::parse;

  auto parse(std::string const& exeName, TokenStream const& tokens) const
      -> InternalParseResult override {
    struct ParserInfo {
      ParserBase const* parser = nullptr;
      size_t count = 0;
    };
    const size_t totalParsers = m_options.size() + m_args.size();
    assert(totalParsers < 512);
    // ParserInfo parseInfos[totalParsers]; // <-- this is what we really want
    // to do
    ParserInfo parseInfos[512];

    {
      size_t i = 0;
      for (auto const& opt : m_options) parseInfos[i++].parser = &opt;
      for (auto const& arg : m_args) parseInfos[i++].parser = &arg;
    }

    m_exeName.set(exeName);

    auto result =
        InternalParseResult::ok(ParseState(ParseResultType::NoMatch, tokens));
    while (result.value().remainingTokens()) {
      bool tokenParsed = false;

      for (size_t i = 0; i < totalParsers; ++i) {
        auto& parseInfo = parseInfos[i];
        if (parseInfo.parser->cardinality() == 0 ||
            parseInfo.count < parseInfo.parser->cardinality()) {
          result = parseInfo.parser->parse(exeName,
                                           result.value().remainingTokens());
          if (!result) return result;
          if (result.value().type() != ParseResultType::NoMatch) {
            tokenParsed = true;
            ++parseInfo.count;
            break;
          }
        }
      }

      if (result.value().type() == ParseResultType::ShortCircuitAll)
        return result;
      if (!tokenParsed)
        return InternalParseResult::runtimeError(
            "Unrecognised token: " + result.value().remainingTokens()->token);
    }
    // !TBD Check missing required options
    return result;
  }
};

template <typename DerivedT>
template <typename T>
auto ComposableParserImpl<DerivedT>::operator|(T const& other) const -> Parser {
  return Parser() | static_cast<DerivedT const&>(*this) | other;
}
}  // namespace detail

// A Combined parser
using detail::Parser;

// A parser for options
using detail::Opt;

// A parser for arguments
using detail::Arg;

// Wrapper for argc, argv from main()
using detail::Args;

// Specifies the name of the executable
using detail::ExeName;

// Convenience wrapper for option parser that specifies the help option
using detail::Help;

// enum of result types from a parse
using detail::ParseResultType;

// Result type for parser operation
using detail::ParserResult;

}  // namespace clara
}  // namespace Catch

// end clara.hpp
#ifdef __clang__
#pragma clang diagnostic pop
#endif

// Restore Clara's value for console width, if present
#ifdef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#define CATCH_CLARA_TEXTFLOW_CONFIG_CONSOLE_WIDTH \
  CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#undef CATCH_TEMP_CLARA_CONFIG_CONSOLE_WIDTH
#endif

// end catch_clara.h
namespace Catch {

clara::Parser makeCommandLineParser(ConfigData& config);

}  // end namespace Catch

// end catch_commandline.h
#include <ctime>
#include <fstream>

namespace Catch {

clara::Parser makeCommandLineParser(ConfigData& config) {
  using namespace clara;

  auto const setWarning = [&](std::string const& warning) {
    auto warningSet = [&]() {
      if (warning == "NoAssertions") return WarnAbout::NoAssertions;

      if (warning == "NoTests") return WarnAbout::NoTests;

      return WarnAbout::Nothing;
    }();

    if (warningSet == WarnAbout::Nothing)
      return ParserResult::runtimeError("Unrecognised warning: '" + warning +
                                        "'");
    config.warnings =
        static_cast<WarnAbout::What>(config.warnings | warningSet);
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const loadTestNamesFromFile = [&](std::string const& filename) {
    std::ifstream f(filename.c_str());
    if (!f.is_open())
      return ParserResult::runtimeError("Unable to load input file: '" +
                                        filename + "'");

    std::string line;
    while (std::getline(f, line)) {
      line = trim(line);
      if (!line.empty() && !startsWith(line, '#')) {
        if (!startsWith(line, '"')) line = '"' + line + '"';
        config.testsOrTags.push_back(line + ',');
      }
    }
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const setTestOrder = [&](std::string const& order) {
    if (startsWith("declared", order))
      config.runOrder = RunTests::InDeclarationOrder;
    else if (startsWith("lexical", order))
      config.runOrder = RunTests::InLexicographicalOrder;
    else if (startsWith("random", order))
      config.runOrder = RunTests::InRandomOrder;
    else
      return clara::ParserResult::runtimeError("Unrecognised ordering: '" +
                                               order + "'");
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const setRngSeed = [&](std::string const& seed) {
    if (seed != "time") return clara::detail::convertInto(seed, config.rngSeed);
    config.rngSeed = static_cast<unsigned int>(std::time(nullptr));
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const setColourUsage = [&](std::string const& useColour) {
    auto mode = toLower(useColour);

    if (mode == "yes")
      config.useColour = UseColour::Yes;
    else if (mode == "no")
      config.useColour = UseColour::No;
    else if (mode == "auto")
      config.useColour = UseColour::Auto;
    else
      return ParserResult::runtimeError(
          "colour mode must be one of: auto, yes or no. '" + useColour +
          "' not recognised");
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const setWaitForKeypress = [&](std::string const& keypress) {
    auto keypressLc = toLower(keypress);
    if (keypressLc == "start")
      config.waitForKeypress = WaitForKeypress::BeforeStart;
    else if (keypressLc == "exit")
      config.waitForKeypress = WaitForKeypress::BeforeExit;
    else if (keypressLc == "both")
      config.waitForKeypress = WaitForKeypress::BeforeStartAndExit;
    else
      return ParserResult::runtimeError(
          "keypress argument must be one of: start, exit or both. '" +
          keypress + "' not recognised");
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const setVerbosity = [&](std::string const& verbosity) {
    auto lcVerbosity = toLower(verbosity);
    if (lcVerbosity == "quiet")
      config.verbosity = Verbosity::Quiet;
    else if (lcVerbosity == "normal")
      config.verbosity = Verbosity::Normal;
    else if (lcVerbosity == "high")
      config.verbosity = Verbosity::High;
    else
      return ParserResult::runtimeError("Unrecognised verbosity, '" +
                                        verbosity + "'");
    return ParserResult::ok(ParseResultType::Matched);
  };
  auto const setReporter = [&](std::string const& reporter) {
    IReporterRegistry::FactoryMap const& factories =
        getRegistryHub().getReporterRegistry().getFactories();

    auto lcReporter = toLower(reporter);
    auto result = factories.find(lcReporter);

    if (factories.end() != result)
      config.reporterName = lcReporter;
    else
      return ParserResult::runtimeError(
          "Unrecognized reporter, '" + reporter +
          "'. Check available with --list-reporters");
    return ParserResult::ok(ParseResultType::Matched);
  };

  auto cli =
      ExeName(config.processName) | Help(config.showHelp) |
      Opt(config.listTests)["-l"]["--list-tests"](
          "list all/matching test cases") |
      Opt(config.listTags)["-t"]["--list-tags"]("list all/matching tags") |
      Opt(config.showSuccessfulTests)["-s"]["--success"](
          "include successful tests in output") |
      Opt(config.shouldDebugBreak)["-b"]["--break"](
          "break into debugger on failure") |
      Opt(config.noThrow)["-e"]["--nothrow"]("skip exception tests") |
      Opt(config.showInvisibles)["-i"]["--invisibles"](
          "show invisibles (tabs, newlines)") |
      Opt(config.outputFilename, "filename")["-o"]["--out"]("output filename") |
      Opt(setReporter,
          "name")["-r"]["--reporter"]("reporter to use (defaults to console)") |
      Opt(config.name, "name")["-n"]["--name"]("suite name") | Opt([&](bool) {
        config.abortAfter = 1;
      })["-a"]["--abort"]("abort at first failure") |
      Opt([&](int x) { config.abortAfter = x; },
          "no. failures")["-x"]["--abortx"]("abort after x failures") |
      Opt(setWarning, "warning name")["-w"]["--warn"]("enable warnings") |
      Opt(
          [&](bool flag) {
            config.showDurations =
                flag ? ShowDurations::Always : ShowDurations::Never;
          },
          "yes|no")["-d"]["--durations"]("show test durations") |
      Opt(loadTestNamesFromFile, "filename")["-f"]["--input-file"](
          "load test names to run from a file") |
      Opt(config.filenamesAsTags)["-#"]["--filenames-as-tags"](
          "adds a tag for the filename") |
      Opt(config.sectionsToRun,
          "section name")["-c"]["--section"]("specify section to run") |
      Opt(setVerbosity,
          "quiet|normal|high")["-v"]["--verbosity"]("set output verbosity") |
      Opt(config.listTestNamesOnly)["--list-test-names-only"](
          "list all/matching test cases names only") |
      Opt(config.listReporters)["--list-reporters"]("list all reporters") |
      Opt(setTestOrder,
          "decl|lex|rand")["--order"]("test case order (defaults to decl)") |
      Opt(setRngSeed, "'time'|number")["--rng-seed"](
          "set a specific seed for random numbers") |
      Opt(setColourUsage,
          "yes|no")["--use-colour"]("should output be colourised") |
      Opt(config.libIdentify)["--libidentify"](
          "report name and version according to libidentify standard") |
      Opt(setWaitForKeypress, "start|exit|both")["--wait-for-keypress"](
          "waits for a keypress before exiting") |
      Opt(config.benchmarkResolutionMultiple,
          "multiplier")["--benchmark-resolution-multiple"](
          "multiple of clock resolution to run benchmarks")

      | Arg(config.testsOrTags,
            "test name|pattern|tags")("which test or tests to use");

  return cli;
}

}  // end namespace Catch
// end catch_commandline.cpp
// start catch_common.cpp

#include <cstring>
#include <ostream>

namespace Catch {

bool SourceLineInfo::empty() const noexcept { return file[0] == '\0'; }
bool SourceLineInfo::operator==(SourceLineInfo const& other) const noexcept {
  return line == other.line &&
         (file == other.file || std::strcmp(file, other.file) == 0);
}
bool SourceLineInfo::operator<(SourceLineInfo const& other) const noexcept {
  // We can assume that the same file will usually have the same pointer.
  // Thus, if the pointers are the same, there is no point in calling the strcmp
  return line < other.line || (line == other.line && file != other.file &&
                               (std::strcmp(file, other.file) < 0));
}

std::ostream& operator<<(std::ostream& os, SourceLineInfo const& info) {
#ifndef __GNUG__
  os << info.file << '(' << info.line << ')';
#else
  os << info.file << ':' << info.line;
#endif
  return os;
}

std::string StreamEndStop::operator+() const { return std::string(); }

NonCopyable::NonCopyable() = default;
NonCopyable::~NonCopyable() = default;

}  // namespace Catch
// end catch_common.cpp
// start catch_config.cpp

namespace Catch {

Config::Config(ConfigData const& data) : m_data(data), m_stream(openStream()) {
  TestSpecParser parser(ITagAliasRegistry::get());
  if (data.testsOrTags.empty()) {
    parser.parse("~[.]");  // All not hidden tests
  } else {
    m_hasTestFilters = true;
    for (auto const& testOrTags : data.testsOrTags) parser.parse(testOrTags);
  }
  m_testSpec = parser.testSpec();
}

std::string const& Config::getFilename() const { return m_data.outputFilename; }

bool Config::listTests() const { return m_data.listTests; }
bool Config::listTestNamesOnly() const { return m_data.listTestNamesOnly; }
bool Config::listTags() const { return m_data.listTags; }
bool Config::listReporters() const { return m_data.listReporters; }

std::string Config::getProcessName() const { return m_data.processName; }
std::string const& Config::getReporterName() const {
  return m_data.reporterName;
}

std::vector<std::string> const& Config::getTestsOrTags() const {
  return m_data.testsOrTags;
}
std::vector<std::string> const& Config::getSectionsToRun() const {
  return m_data.sectionsToRun;
}

TestSpec const& Config::testSpec() const { return m_testSpec; }
bool Config::hasTestFilters() const { return m_hasTestFilters; }

bool Config::showHelp() const { return m_data.showHelp; }

// IConfig interface
bool Config::allowThrows() const { return !m_data.noThrow; }
std::ostream& Config::stream() const { return m_stream->stream(); }
std::string Config::name() const {
  return m_data.name.empty() ? m_data.processName : m_data.name;
}
bool Config::includeSuccessfulResults() const {
  return m_data.showSuccessfulTests;
}
bool Config::warnAboutMissingAssertions() const {
  return !!(m_data.warnings & WarnAbout::NoAssertions);
}
bool Config::warnAboutNoTests() const {
  return !!(m_data.warnings & WarnAbout::NoTests);
}
ShowDurations::OrNot Config::showDurations() const {
  return m_data.showDurations;
}
RunTests::InWhatOrder Config::runOrder() const { return m_data.runOrder; }
unsigned int Config::rngSeed() const { return m_data.rngSeed; }
int Config::benchmarkResolutionMultiple() const {
  return m_data.benchmarkResolutionMultiple;
}
UseColour::YesOrNo Config::useColour() const { return m_data.useColour; }
bool Config::shouldDebugBreak() const { return m_data.shouldDebugBreak; }
int Config::abortAfter() const { return m_data.abortAfter; }
bool Config::showInvisibles() const { return m_data.showInvisibles; }
Verbosity Config::verbosity() const { return m_data.verbosity; }

IStream const* Config::openStream() {
  return Catch::makeStream(m_data.outputFilename);
}

}  // end namespace Catch
// end catch_config.cpp
// start catch_console_colour.cpp

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

// start catch_errno_guard.h

namespace Catch {

class ErrnoGuard {
 public:
  ErrnoGuard();
  ~ErrnoGuard();

 private:
  int m_oldErrno;
};

}  // namespace Catch

// end catch_errno_guard.h
#include <sstream>

namespace Catch {
namespace {

struct IColourImpl {
  virtual ~IColourImpl() = default;
  virtual void use(Colour::Code _colourCode) = 0;
};

struct NoColourImpl : IColourImpl {
  void use(Colour::Code) {}

  static IColourImpl* instance() {
    static NoColourImpl s_instance;
    return &s_instance;
  }
};

}  // namespace
}  // namespace Catch

#if !defined(CATCH_CONFIG_COLOUR_NONE) &&    \
    !defined(CATCH_CONFIG_COLOUR_WINDOWS) && \
    !defined(CATCH_CONFIG_COLOUR_ANSI)
#ifdef CATCH_PLATFORM_WINDOWS
#define CATCH_CONFIG_COLOUR_WINDOWS
#else
#define CATCH_CONFIG_COLOUR_ANSI
#endif
#endif

#if defined( \
    CATCH_CONFIG_COLOUR_WINDOWS)  /////////////////////////////////////////

namespace Catch {
namespace {

class Win32ColourImpl : public IColourImpl {
 public:
  Win32ColourImpl() : stdoutHandle(GetStdHandle(STD_OUTPUT_HANDLE)) {
    CONSOLE_SCREEN_BUFFER_INFO csbiInfo;
    GetConsoleScreenBufferInfo(stdoutHandle, &csbiInfo);
    originalForegroundAttributes =
        csbiInfo.wAttributes & ~(BACKGROUND_GREEN | BACKGROUND_RED |
                                 BACKGROUND_BLUE | BACKGROUND_INTENSITY);
    originalBackgroundAttributes =
        csbiInfo.wAttributes & ~(FOREGROUND_GREEN | FOREGROUND_RED |
                                 FOREGROUND_BLUE | FOREGROUND_INTENSITY);
  }

  virtual void use(Colour::Code _colourCode) override {
    switch (_colourCode) {
      case Colour::None:
        return setTextAttribute(originalForegroundAttributes);
      case Colour::White:
        return setTextAttribute(FOREGROUND_GREEN | FOREGROUND_RED |
                                FOREGROUND_BLUE);
      case Colour::Red:
        return setTextAttribute(FOREGROUND_RED);
      case Colour::Green:
        return setTextAttribute(FOREGROUND_GREEN);
      case Colour::Blue:
        return setTextAttribute(FOREGROUND_BLUE);
      case Colour::Cyan:
        return setTextAttribute(FOREGROUND_BLUE | FOREGROUND_GREEN);
      case Colour::Yellow:
        return setTextAttribute(FOREGROUND_RED | FOREGROUND_GREEN);
      case Colour::Grey:
        return setTextAttribute(0);

      case Colour::LightGrey:
        return setTextAttribute(FOREGROUND_INTENSITY);
      case Colour::BrightRed:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED);
      case Colour::BrightGreen:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN);
      case Colour::BrightWhite:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_GREEN |
                                FOREGROUND_RED | FOREGROUND_BLUE);
      case Colour::BrightYellow:
        return setTextAttribute(FOREGROUND_INTENSITY | FOREGROUND_RED |
                                FOREGROUND_GREEN);

      case Colour::Bright:
        CATCH_INTERNAL_ERROR("not a colour");

      default:
        CATCH_ERROR("Unknown colour requested");
    }
  }

 private:
  void setTextAttribute(WORD _textAttribute) {
    SetConsoleTextAttribute(stdoutHandle,
                            _textAttribute | originalBackgroundAttributes);
  }
  HANDLE stdoutHandle;
  WORD originalForegroundAttributes;
  WORD originalBackgroundAttributes;
};

IColourImpl* platformColourInstance() {
  static Win32ColourImpl s_instance;

  IConfigPtr config = getCurrentContext().getConfig();
  UseColour::YesOrNo colourMode =
      config ? config->useColour() : UseColour::Auto;
  if (colourMode == UseColour::Auto) colourMode = UseColour::Yes;
  return colourMode == UseColour::Yes ? &s_instance : NoColourImpl::instance();
}

}  // namespace
}  // end namespace Catch

#elif defined(CATCH_CONFIG_COLOUR_ANSI)  //////////////////////////////////////

#include <unistd.h>

namespace Catch {
namespace {

// use POSIX/ ANSI console terminal codes
// Thanks to Adam Strzelecki for original contribution
// (http://github.com/nanoant)
// https://github.com/philsquared/Catch/pull/131
class PosixColourImpl : public IColourImpl {
 public:
  virtual void use(Colour::Code _colourCode) override {
    switch (_colourCode) {
      case Colour::None:
      case Colour::White:
        return setColour("[0m");
      case Colour::Red:
        return setColour("[0;31m");
      case Colour::Green:
        return setColour("[0;32m");
      case Colour::Blue:
        return setColour("[0;34m");
      case Colour::Cyan:
        return setColour("[0;36m");
      case Colour::Yellow:
        return setColour("[0;33m");
      case Colour::Grey:
        return setColour("[1;30m");

      case Colour::LightGrey:
        return setColour("[0;37m");
      case Colour::BrightRed:
        return setColour("[1;31m");
      case Colour::BrightGreen:
        return setColour("[1;32m");
      case Colour::BrightWhite:
        return setColour("[1;37m");
      case Colour::BrightYellow:
        return setColour("[1;33m");

      case Colour::Bright:
        CATCH_INTERNAL_ERROR("not a colour");
      default:
        CATCH_INTERNAL_ERROR("Unknown colour requested");
    }
  }
  static IColourImpl* instance() {
    static PosixColourImpl s_instance;
    return &s_instance;
  }

 private:
  void setColour(const char* _escapeCode) {
    Catch::cout() << '\033' << _escapeCode;
  }
};

bool useColourOnPlatform() {
  return
#ifdef CATCH_PLATFORM_MAC
      !isDebuggerActive() &&
#endif
#if !(defined(__DJGPP__) && defined(__STRICT_ANSI__))
      isatty(STDOUT_FILENO)
#else
      false
#endif
          ;
}
IColourImpl* platformColourInstance() {
  ErrnoGuard guard;
  IConfigPtr config = getCurrentContext().getConfig();
  UseColour::YesOrNo colourMode =
      config ? config->useColour() : UseColour::Auto;
  if (colourMode == UseColour::Auto)
    colourMode = useColourOnPlatform() ? UseColour::Yes : UseColour::No;
  return colourMode == UseColour::Yes ? PosixColourImpl::instance()
                                      : NoColourImpl::instance();
}

}  // namespace
}  // end namespace Catch

#else  // not Windows or ANSI ///////////////////////////////////////////////

namespace Catch {

static IColourImpl* platformColourInstance() {
  return NoColourImpl::instance();
}

}  // end namespace Catch

#endif  // Windows/ ANSI/ None

namespace Catch {

Colour::Colour(Code _colourCode) { use(_colourCode); }
Colour::Colour(Colour&& rhs) noexcept {
  m_moved = rhs.m_moved;
  rhs.m_moved = true;
}
Colour& Colour::operator=(Colour&& rhs) noexcept {
  m_moved = rhs.m_moved;
  rhs.m_moved = true;
  return *this;
}

Colour::~Colour() {
  if (!m_moved) use(None);
}

void Colour::use(Code _colourCode) {
  static IColourImpl* impl = platformColourInstance();
  impl->use(_colourCode);
}

std::ostream& operator<<(std::ostream& os, Colour const&) { return os; }

}  // end namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

// end catch_console_colour.cpp
// start catch_context.cpp

namespace Catch {

class Context : public IMutableContext, NonCopyable {
 public:  // IContext
  virtual IResultCapture* getResultCapture() override {
    return m_resultCapture;
  }
  virtual IRunner* getRunner() override { return m_runner; }

  virtual IConfigPtr const& getConfig() const override { return m_config; }

  virtual ~Context() override;

 public:  // IMutableContext
  virtual void setResultCapture(IResultCapture* resultCapture) override {
    m_resultCapture = resultCapture;
  }
  virtual void setRunner(IRunner* runner) override { m_runner = runner; }
  virtual void setConfig(IConfigPtr const& config) override {
    m_config = config;
  }

  friend IMutableContext& getCurrentMutableContext();

 private:
  IConfigPtr m_config;
  IRunner* m_runner = nullptr;
  IResultCapture* m_resultCapture = nullptr;
};

IMutableContext* IMutableContext::currentContext = nullptr;

void IMutableContext::createContext() { currentContext = new Context(); }

void cleanUpContext() {
  delete IMutableContext::currentContext;
  IMutableContext::currentContext = nullptr;
}
IContext::~IContext() = default;
IMutableContext::~IMutableContext() = default;
Context::~Context() = default;
}  // namespace Catch
// end catch_context.cpp
// start catch_debug_console.cpp

// start catch_debug_console.h

#include <string>

namespace Catch {
void writeToDebugConsole(std::string const& text);
}

// end catch_debug_console.h
#ifdef CATCH_PLATFORM_WINDOWS

namespace Catch {
void writeToDebugConsole(std::string const& text) {
  ::OutputDebugStringA(text.c_str());
}
}  // namespace Catch

#else

namespace Catch {
void writeToDebugConsole(std::string const& text) {
  // !TBD: Need a version for Mac/ XCode and other IDEs
  Catch::cout() << text;
}
}  // namespace Catch

#endif  // Platform
// end catch_debug_console.cpp
// start catch_debugger.cpp

#ifdef CATCH_PLATFORM_MAC

#include <assert.h>
#include <stdbool.h>
#include <sys/sysctl.h>
#include <sys/types.h>
#include <unistd.h>
#include <cstddef>
#include <ostream>

namespace Catch {

// The following function is taken directly from the following technical note:
// http://developer.apple.com/library/mac/#qa/qa2004/qa1361.html

// Returns true if the current process is being debugged (either
// running under the debugger or has a debugger attached post facto).
bool isDebuggerActive() {
  int mib[4];
  struct kinfo_proc info;
  std::size_t size;

  // Initialize the flags so that, if sysctl fails for some bizarre
  // reason, we get a predictable result.

  info.kp_proc.p_flag = 0;

  // Initialize mib, which tells sysctl the info we want, in this case
  // we're looking for information about a specific process ID.

  mib[0] = CTL_KERN;
  mib[1] = KERN_PROC;
  mib[2] = KERN_PROC_PID;
  mib[3] = getpid();

  // Call sysctl.

  size = sizeof(info);
  if (sysctl(mib, sizeof(mib) / sizeof(*mib), &info, &size, nullptr, 0) != 0) {
    Catch::cerr() << "\n** Call to sysctl failed - unable to determine if "
                     "debugger is active **\n"
                  << std::endl;
    return false;
  }

  // We're being debugged if the P_TRACED flag is set.

  return ((info.kp_proc.p_flag & P_TRACED) != 0);
}
}  // namespace Catch

#elif defined(CATCH_PLATFORM_LINUX)
#include <fstream>
#include <string>

namespace Catch {
// The standard POSIX way of detecting a debugger is to attempt to
// ptrace() the process, but this needs to be done from a child and not
// this process itself to still allow attaching to this process later
// if wanted, so is rather heavy. Under Linux we have the PID of the
// "debugger" (which doesn't need to be gdb, of course, it could also
// be strace, for example) in /proc/$PID/status, so just get it from
// there instead.
bool isDebuggerActive() {
  // Libstdc++ has a bug, where std::ifstream sets errno to 0
  // This way our users can properly assert over errno values
  ErrnoGuard guard;
  std::ifstream in("/proc/self/status");
  for (std::string line; std::getline(in, line);) {
    static const int PREFIX_LEN = 11;
    if (line.compare(0, PREFIX_LEN, "TracerPid:\t") == 0) {
      // We're traced if the PID is not 0 and no other PID starts
      // with 0 digit, so it's enough to check for just a single
      // character.
      return line.length() > PREFIX_LEN && line[PREFIX_LEN] != '0';
    }
  }

  return false;
}
}  // namespace Catch
#elif defined(_MSC_VER)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch {
bool isDebuggerActive() { return IsDebuggerPresent() != 0; }
}  // namespace Catch
#elif defined(__MINGW32__)
extern "C" __declspec(dllimport) int __stdcall IsDebuggerPresent();
namespace Catch {
bool isDebuggerActive() { return IsDebuggerPresent() != 0; }
}  // namespace Catch
#else
namespace Catch {
bool isDebuggerActive() { return false; }
}  // namespace Catch
#endif  // Platform
// end catch_debugger.cpp
// start catch_decomposer.cpp

namespace Catch {

ITransientExpression::~ITransientExpression() = default;

void formatReconstructedExpression(std::ostream& os, std::string const& lhs,
                                   StringRef op, std::string const& rhs) {
  if (lhs.size() + rhs.size() < 40 && lhs.find('\n') == std::string::npos &&
      rhs.find('\n') == std::string::npos)
    os << lhs << " " << op << " " << rhs;
  else
    os << lhs << "\n" << op << "\n" << rhs;
}
}  // namespace Catch
// end catch_decomposer.cpp
// start catch_enforce.cpp

namespace Catch {
#if defined(CATCH_CONFIG_DISABLE_EXCEPTIONS) && \
    !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS_CUSTOM_HANDLER)
[[noreturn]] void throw_exception(std::exception const& e) {
  Catch::cerr()
      << "Catch will terminate because it needed to throw an exception.\n"
      << "The message was: " << e.what() << '\n';
  std::terminate();
}
#endif
}  // namespace Catch
// end catch_enforce.cpp
// start catch_errno_guard.cpp

#include <cerrno>

namespace Catch {
ErrnoGuard::ErrnoGuard() : m_oldErrno(errno) {}
ErrnoGuard::~ErrnoGuard() { errno = m_oldErrno; }
}  // namespace Catch
// end catch_errno_guard.cpp
// start catch_exception_translator_registry.cpp

// start catch_exception_translator_registry.h

#include <memory>
#include <string>
#include <vector>

namespace Catch {

class ExceptionTranslatorRegistry : public IExceptionTranslatorRegistry {
 public:
  ~ExceptionTranslatorRegistry();
  virtual void registerTranslator(const IExceptionTranslator* translator);
  virtual std::string translateActiveException() const override;
  std::string tryTranslators() const;

 private:
  std::vector<std::unique_ptr<IExceptionTranslator const>> m_translators;
};
}  // namespace Catch

// end catch_exception_translator_registry.h
#ifdef __OBJC__
#import "Foundation/Foundation.h"
#endif

namespace Catch {

ExceptionTranslatorRegistry::~ExceptionTranslatorRegistry() {}

void ExceptionTranslatorRegistry::registerTranslator(
    const IExceptionTranslator* translator) {
  m_translators.push_back(
      std::unique_ptr<const IExceptionTranslator>(translator));
}

#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
std::string ExceptionTranslatorRegistry::translateActiveException() const {
  try {
#ifdef __OBJC__
    // In Objective-C try objective-c exceptions first
    @try {
      return tryTranslators();
    } @catch (NSException* exception) {
      return Catch::Detail::stringify([exception description]);
    }
#else
    // Compiling a mixed mode project with MSVC means that CLR
    // exceptions will be caught in (...) as well. However, these
    // do not fill-in std::current_exception and thus lead to crash
    // when attempting rethrow.
    // /EHa switch also causes structured exceptions to be caught
    // here, but they fill-in current_exception properly, so
    // at worst the output should be a little weird, instead of
    // causing a crash.
    if (std::current_exception() == nullptr) {
      return "Non C++ exception. Possibly a CLR exception.";
    }
    return tryTranslators();
#endif
  } catch (TestFailureException&) {
    std::rethrow_exception(std::current_exception());
  } catch (std::exception& ex) { return ex.what(); } catch (std::string& msg) {
    return msg;
  } catch (const char* msg) { return msg; } catch (...) {
    return "Unknown exception";
  }
}

#else  // ^^ Exceptions are enabled // Exceptions are disabled vv
std::string ExceptionTranslatorRegistry::translateActiveException() const {
  CATCH_INTERNAL_ERROR(
      "Attempted to translate active exception under "
      "CATCH_CONFIG_DISABLE_EXCEPTIONS!");
}
#endif

std::string ExceptionTranslatorRegistry::tryTranslators() const {
  if (m_translators.empty())
    std::rethrow_exception(std::current_exception());
  else
    return m_translators[0]->translate(m_translators.begin() + 1,
                                       m_translators.end());
}
}  // namespace Catch
// end catch_exception_translator_registry.cpp
// start catch_fatal_condition.cpp

#if defined(__GNUC__)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wmissing-field-initializers"
#endif

#if defined(CATCH_CONFIG_WINDOWS_SEH) || defined(CATCH_CONFIG_POSIX_SIGNALS)

namespace {
// Report the error condition
void reportFatal(char const* const message) {
  Catch::getCurrentContext().getResultCapture()->handleFatalErrorCondition(
      message);
}
}  // namespace

#endif  // signals/SEH handling

#if defined(CATCH_CONFIG_WINDOWS_SEH)

namespace Catch {
struct SignalDefs {
  DWORD id;
  const char* name;
};

// There is no 1-1 mapping between signals and windows exceptions.
// Windows can easily distinguish between SO and SigSegV,
// but SigInt, SigTerm, etc are handled differently.
static SignalDefs signalDefs[] = {
    {EXCEPTION_ILLEGAL_INSTRUCTION, "SIGILL - Illegal instruction signal"},
    {EXCEPTION_STACK_OVERFLOW, "SIGSEGV - Stack overflow"},
    {EXCEPTION_ACCESS_VIOLATION, "SIGSEGV - Segmentation violation signal"},
    {EXCEPTION_INT_DIVIDE_BY_ZERO, "Divide by zero error"},
};

LONG CALLBACK FatalConditionHandler::handleVectoredException(
    PEXCEPTION_POINTERS ExceptionInfo) {
  for (auto const& def : signalDefs) {
    if (ExceptionInfo->ExceptionRecord->ExceptionCode == def.id) {
      reportFatal(def.name);
    }
  }
  // If its not an exception we care about, pass it along.
  // This stops us from eating debugger breaks etc.
  return EXCEPTION_CONTINUE_SEARCH;
}

FatalConditionHandler::FatalConditionHandler() {
  isSet = true;
  // 32k seems enough for Catch to handle stack overflow,
  // but the value was found experimentally, so there is no strong guarantee
  guaranteeSize = 32 * 1024;
  exceptionHandlerHandle = nullptr;
  // Register as first handler in current chain
  exceptionHandlerHandle =
      AddVectoredExceptionHandler(1, handleVectoredException);
  // Pass in guarantee size to be filled
  SetThreadStackGuarantee(&guaranteeSize);
}

void FatalConditionHandler::reset() {
  if (isSet) {
    RemoveVectoredExceptionHandler(exceptionHandlerHandle);
    SetThreadStackGuarantee(&guaranteeSize);
    exceptionHandlerHandle = nullptr;
    isSet = false;
  }
}

FatalConditionHandler::~FatalConditionHandler() { reset(); }

bool FatalConditionHandler::isSet = false;
ULONG FatalConditionHandler::guaranteeSize = 0;
PVOID FatalConditionHandler::exceptionHandlerHandle = nullptr;

}  // namespace Catch

#elif defined(CATCH_CONFIG_POSIX_SIGNALS)

namespace Catch {

struct SignalDefs {
  int id;
  const char* name;
};

// 32kb for the alternate stack seems to be sufficient. However, this value
// is experimentally determined, so that's not guaranteed.
constexpr static std::size_t sigStackSize =
    32768 >= MINSIGSTKSZ ? 32768 : MINSIGSTKSZ;

static SignalDefs signalDefs[] = {
    {SIGINT, "SIGINT - Terminal interrupt signal"},
    {SIGILL, "SIGILL - Illegal instruction signal"},
    {SIGFPE, "SIGFPE - Floating point error signal"},
    {SIGSEGV, "SIGSEGV - Segmentation violation signal"},
    {SIGTERM, "SIGTERM - Termination request signal"},
    {SIGABRT, "SIGABRT - Abort (abnormal termination) signal"}};

void FatalConditionHandler::handleSignal(int sig) {
  char const* name = "<unknown signal>";
  for (auto const& def : signalDefs) {
    if (sig == def.id) {
      name = def.name;
      break;
    }
  }
  reset();
  reportFatal(name);
  raise(sig);
}

FatalConditionHandler::FatalConditionHandler() {
  isSet = true;
  stack_t sigStack;
  sigStack.ss_sp = altStackMem;
  sigStack.ss_size = sigStackSize;
  sigStack.ss_flags = 0;
  sigaltstack(&sigStack, &oldSigStack);
  struct sigaction sa = {};

  sa.sa_handler = handleSignal;
  sa.sa_flags = SA_ONSTACK;
  for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
    sigaction(signalDefs[i].id, &sa, &oldSigActions[i]);
  }
}

FatalConditionHandler::~FatalConditionHandler() { reset(); }

void FatalConditionHandler::reset() {
  if (isSet) {
    // Set signals back to previous values -- hopefully nobody overwrote them in
    // the meantime
    for (std::size_t i = 0; i < sizeof(signalDefs) / sizeof(SignalDefs); ++i) {
      sigaction(signalDefs[i].id, &oldSigActions[i], nullptr);
    }
    // Return the old stack
    sigaltstack(&oldSigStack, nullptr);
    isSet = false;
  }
}

bool FatalConditionHandler::isSet = false;
struct sigaction FatalConditionHandler::oldSigActions[sizeof(signalDefs) /
                                                      sizeof(SignalDefs)] = {};
stack_t FatalConditionHandler::oldSigStack = {};
char FatalConditionHandler::altStackMem[sigStackSize] = {};

}  // namespace Catch

#else

namespace Catch {
void FatalConditionHandler::reset() {}
}  // namespace Catch

#endif  // signals/SEH handling

#if defined(__GNUC__)
#pragma GCC diagnostic pop
#endif
// end catch_fatal_condition.cpp
// start catch_generators.cpp

// start catch_random_number_generator.h

#include <algorithm>
#include <random>

namespace Catch {

struct IConfig;

std::mt19937& rng();
void seedRng(IConfig const& config);
unsigned int rngSeed();

}  // namespace Catch

// end catch_random_number_generator.h
#include <limits>
#include <set>

namespace Catch {

IGeneratorTracker::~IGeneratorTracker() {}

namespace Generators {

GeneratorBase::~GeneratorBase() {}

std::vector<size_t> randomiseIndices(size_t selectionSize, size_t sourceSize) {
  assert(selectionSize <= sourceSize);
  std::vector<size_t> indices;
  indices.reserve(selectionSize);
  std::uniform_int_distribution<size_t> uid(0, sourceSize - 1);

  std::set<size_t> seen;
  // !TBD: improve this algorithm
  while (indices.size() < selectionSize) {
    auto index = uid(rng());
    if (seen.insert(index).second) indices.push_back(index);
  }
  return indices;
}

auto acquireGeneratorTracker(SourceLineInfo const& lineInfo)
    -> IGeneratorTracker& {
  return getResultCapture().acquireGeneratorTracker(lineInfo);
}

template <>
auto all<int>() -> Generator<int> {
  return range(std::numeric_limits<int>::min(),
               std::numeric_limits<int>::max());
}

}  // namespace Generators
}  // namespace Catch
// end catch_generators.cpp
// start catch_interfaces_capture.cpp

namespace Catch {
IResultCapture::~IResultCapture() = default;
}
// end catch_interfaces_capture.cpp
// start catch_interfaces_config.cpp

namespace Catch {
IConfig::~IConfig() = default;
}
// end catch_interfaces_config.cpp
// start catch_interfaces_exception.cpp

namespace Catch {
IExceptionTranslator::~IExceptionTranslator() = default;
IExceptionTranslatorRegistry::~IExceptionTranslatorRegistry() = default;
}  // namespace Catch
// end catch_interfaces_exception.cpp
// start catch_interfaces_registry_hub.cpp

namespace Catch {
IRegistryHub::~IRegistryHub() = default;
IMutableRegistryHub::~IMutableRegistryHub() = default;
}  // namespace Catch
// end catch_interfaces_registry_hub.cpp
// start catch_interfaces_reporter.cpp

// start catch_reporter_listening.h

namespace Catch {

class ListeningReporter : public IStreamingReporter {
  using Reporters = std::vector<IStreamingReporterPtr>;
  Reporters m_listeners;
  IStreamingReporterPtr m_reporter = nullptr;
  ReporterPreferences m_preferences;

 public:
  ListeningReporter();

  void addListener(IStreamingReporterPtr&& listener);
  void addReporter(IStreamingReporterPtr&& reporter);

 public:  // IStreamingReporter
  ReporterPreferences getPreferences() const override;

  void noMatchingTestCases(std::string const& spec) override;

  static std::set<Verbosity> getSupportedVerbosities();

  void benchmarkStarting(BenchmarkInfo const& benchmarkInfo) override;
  void benchmarkEnded(BenchmarkStats const& benchmarkStats) override;

  void testRunStarting(TestRunInfo const& testRunInfo) override;
  void testGroupStarting(GroupInfo const& groupInfo) override;
  void testCaseStarting(TestCaseInfo const& testInfo) override;
  void sectionStarting(SectionInfo const& sectionInfo) override;
  void assertionStarting(AssertionInfo const& assertionInfo) override;

  // The return value indicates if the messages buffer should be cleared:
  bool assertionEnded(AssertionStats const& assertionStats) override;
  void sectionEnded(SectionStats const& sectionStats) override;
  void testCaseEnded(TestCaseStats const& testCaseStats) override;
  void testGroupEnded(TestGroupStats const& testGroupStats) override;
  void testRunEnded(TestRunStats const& testRunStats) override;

  void skipTest(TestCaseInfo const& testInfo) override;
  bool isMulti() const override;
};

}  // end namespace Catch

// end catch_reporter_listening.h
namespace Catch {

ReporterConfig::ReporterConfig(IConfigPtr const& _fullConfig)
    : m_stream(&_fullConfig->stream()), m_fullConfig(_fullConfig) {}

ReporterConfig::ReporterConfig(IConfigPtr const& _fullConfig,
                               std::ostream& _stream)
    : m_stream(&_stream), m_fullConfig(_fullConfig) {}

std::ostream& ReporterConfig::stream() const { return *m_stream; }
IConfigPtr ReporterConfig::fullConfig() const { return m_fullConfig; }

TestRunInfo::TestRunInfo(std::string const& _name) : name(_name) {}

GroupInfo::GroupInfo(std::string const& _name, std::size_t _groupIndex,
                     std::size_t _groupsCount)
    : name(_name), groupIndex(_groupIndex), groupsCounts(_groupsCount) {}

AssertionStats::AssertionStats(AssertionResult const& _assertionResult,
                               std::vector<MessageInfo> const& _infoMessages,
                               Totals const& _totals)
    : assertionResult(_assertionResult),
      infoMessages(_infoMessages),
      totals(_totals) {
  assertionResult.m_resultData.lazyExpression.m_transientExpression =
      _assertionResult.m_resultData.lazyExpression.m_transientExpression;

  if (assertionResult.hasMessage()) {
    // Copy message into messages list.
    // !TBD This should have been done earlier, somewhere
    MessageBuilder builder(assertionResult.getTestMacroName(),
                           assertionResult.getSourceInfo(),
                           assertionResult.getResultType());
    builder << assertionResult.getMessage();
    builder.m_info.message = builder.m_stream.str();

    infoMessages.push_back(builder.m_info);
  }
}

AssertionStats::~AssertionStats() = default;

SectionStats::SectionStats(SectionInfo const& _sectionInfo,
                           Counts const& _assertions, double _durationInSeconds,
                           bool _missingAssertions)
    : sectionInfo(_sectionInfo),
      assertions(_assertions),
      durationInSeconds(_durationInSeconds),
      missingAssertions(_missingAssertions) {}

SectionStats::~SectionStats() = default;

TestCaseStats::TestCaseStats(TestCaseInfo const& _testInfo,
                             Totals const& _totals, std::string const& _stdOut,
                             std::string const& _stdErr, bool _aborting)
    : testInfo(_testInfo),
      totals(_totals),
      stdOut(_stdOut),
      stdErr(_stdErr),
      aborting(_aborting) {}

TestCaseStats::~TestCaseStats() = default;

TestGroupStats::TestGroupStats(GroupInfo const& _groupInfo,
                               Totals const& _totals, bool _aborting)
    : groupInfo(_groupInfo), totals(_totals), aborting(_aborting) {}

TestGroupStats::TestGroupStats(GroupInfo const& _groupInfo)
    : groupInfo(_groupInfo), aborting(false) {}

TestGroupStats::~TestGroupStats() = default;

TestRunStats::TestRunStats(TestRunInfo const& _runInfo, Totals const& _totals,
                           bool _aborting)
    : runInfo(_runInfo), totals(_totals), aborting(_aborting) {}

TestRunStats::~TestRunStats() = default;

void IStreamingReporter::fatalErrorEncountered(StringRef) {}
bool IStreamingReporter::isMulti() const { return false; }

IReporterFactory::~IReporterFactory() = default;
IReporterRegistry::~IReporterRegistry() = default;

}  // end namespace Catch
// end catch_interfaces_reporter.cpp
// start catch_interfaces_runner.cpp

namespace Catch {
IRunner::~IRunner() = default;
}
// end catch_interfaces_runner.cpp
// start catch_interfaces_testcase.cpp

namespace Catch {
ITestInvoker::~ITestInvoker() = default;
ITestCaseRegistry::~ITestCaseRegistry() = default;
}  // namespace Catch
// end catch_interfaces_testcase.cpp
// start catch_leak_detector.cpp

#ifdef CATCH_CONFIG_WINDOWS_CRTDBG
#include <crtdbg.h>

namespace Catch {

LeakDetector::LeakDetector() {
  int flag = _CrtSetDbgFlag(_CRTDBG_REPORT_FLAG);
  flag |= _CRTDBG_LEAK_CHECK_DF;
  flag |= _CRTDBG_ALLOC_MEM_DF;
  _CrtSetDbgFlag(flag);
  _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE | _CRTDBG_MODE_DEBUG);
  _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDERR);
  // Change this to leaking allocation's number to break there
  _CrtSetBreakAlloc(-1);
}
}  // namespace Catch

#else

Catch::LeakDetector::LeakDetector() {}

#endif

Catch::LeakDetector::~LeakDetector() { Catch::cleanUp(); }
// end catch_leak_detector.cpp
// start catch_list.cpp

// start catch_list.h

#include <set>

namespace Catch {

std::size_t listTests(Config const& config);

std::size_t listTestsNamesOnly(Config const& config);

struct TagInfo {
  void add(std::string const& spelling);
  std::string all() const;

  std::set<std::string> spellings;
  std::size_t count = 0;
};

std::size_t listTags(Config const& config);

std::size_t listReporters();

Option<std::size_t> list(Config const& config);

}  // end namespace Catch

// end catch_list.h
// start catch_text.h

namespace Catch {
using namespace clara::TextFlow;
}

// end catch_text.h
#include <algorithm>
#include <iomanip>
#include <limits>

namespace Catch {

std::size_t listTests(Config const& config) {
  TestSpec testSpec = config.testSpec();
  if (config.hasTestFilters())
    Catch::cout() << "Matching test cases:\n";
  else {
    Catch::cout() << "All available test cases:\n";
  }

  auto matchedTestCases =
      filterTests(getAllTestCasesSorted(config), testSpec, config);
  for (auto const& testCaseInfo : matchedTestCases) {
    Colour::Code colour =
        testCaseInfo.isHidden() ? Colour::SecondaryText : Colour::None;
    Colour colourGuard(colour);

    Catch::cout() << Column(testCaseInfo.name).initialIndent(2).indent(4)
                  << "\n";
    if (config.verbosity() >= Verbosity::High) {
      Catch::cout()
          << Column(Catch::Detail::stringify(testCaseInfo.lineInfo)).indent(4)
          << std::endl;
      std::string description = testCaseInfo.description;
      if (description.empty()) description = "(NO DESCRIPTION)";
      Catch::cout() << Column(description).indent(4) << std::endl;
    }
    if (!testCaseInfo.tags.empty())
      Catch::cout() << Column(testCaseInfo.tagsAsString()).indent(6) << "\n";
  }

  if (!config.hasTestFilters())
    Catch::cout() << pluralise(matchedTestCases.size(), "test case") << '\n'
                  << std::endl;
  else
    Catch::cout() << pluralise(matchedTestCases.size(), "matching test case")
                  << '\n'
                  << std::endl;
  return matchedTestCases.size();
}

std::size_t listTestsNamesOnly(Config const& config) {
  TestSpec testSpec = config.testSpec();
  std::size_t matchedTests = 0;
  std::vector<TestCase> matchedTestCases =
      filterTests(getAllTestCasesSorted(config), testSpec, config);
  for (auto const& testCaseInfo : matchedTestCases) {
    matchedTests++;
    if (startsWith(testCaseInfo.name, '#'))
      Catch::cout() << '"' << testCaseInfo.name << '"';
    else
      Catch::cout() << testCaseInfo.name;
    if (config.verbosity() >= Verbosity::High)
      Catch::cout() << "\t@" << testCaseInfo.lineInfo;
    Catch::cout() << std::endl;
  }
  return matchedTests;
}

void TagInfo::add(std::string const& spelling) {
  ++count;
  spellings.insert(spelling);
}

std::string TagInfo::all() const {
  std::string out;
  for (auto const& spelling : spellings) out += "[" + spelling + "]";
  return out;
}

std::size_t listTags(Config const& config) {
  TestSpec testSpec = config.testSpec();
  if (config.hasTestFilters())
    Catch::cout() << "Tags for matching test cases:\n";
  else {
    Catch::cout() << "All available tags:\n";
  }

  std::map<std::string, TagInfo> tagCounts;

  std::vector<TestCase> matchedTestCases =
      filterTests(getAllTestCasesSorted(config), testSpec, config);
  for (auto const& testCase : matchedTestCases) {
    for (auto const& tagName : testCase.getTestCaseInfo().tags) {
      std::string lcaseTagName = toLower(tagName);
      auto countIt = tagCounts.find(lcaseTagName);
      if (countIt == tagCounts.end())
        countIt =
            tagCounts.insert(std::make_pair(lcaseTagName, TagInfo())).first;
      countIt->second.add(tagName);
    }
  }

  for (auto const& tagCount : tagCounts) {
    ReusableStringStream rss;
    rss << "  " << std::setw(2) << tagCount.second.count << "  ";
    auto str = rss.str();
    auto wrapper = Column(tagCount.second.all())
                       .initialIndent(0)
                       .indent(str.size())
                       .width(CATCH_CONFIG_CONSOLE_WIDTH - 10);
    Catch::cout() << str << wrapper << '\n';
  }
  Catch::cout() << pluralise(tagCounts.size(), "tag") << '\n' << std::endl;
  return tagCounts.size();
}

std::size_t listReporters() {
  Catch::cout() << "Available reporters:\n";
  IReporterRegistry::FactoryMap const& factories =
      getRegistryHub().getReporterRegistry().getFactories();
  std::size_t maxNameLen = 0;
  for (auto const& factoryKvp : factories)
    maxNameLen = (std::max)(maxNameLen, factoryKvp.first.size());

  for (auto const& factoryKvp : factories) {
    Catch::cout()
        << Column(factoryKvp.first + ":").indent(2).width(5 + maxNameLen) +
               Column(factoryKvp.second->getDescription())
                   .initialIndent(0)
                   .indent(2)
                   .width(CATCH_CONFIG_CONSOLE_WIDTH - maxNameLen - 8)
        << "\n";
  }
  Catch::cout() << std::endl;
  return factories.size();
}

Option<std::size_t> list(Config const& config) {
  Option<std::size_t> listedCount;
  if (config.listTests())
    listedCount = listedCount.valueOr(0) + listTests(config);
  if (config.listTestNamesOnly())
    listedCount = listedCount.valueOr(0) + listTestsNamesOnly(config);
  if (config.listTags())
    listedCount = listedCount.valueOr(0) + listTags(config);
  if (config.listReporters())
    listedCount = listedCount.valueOr(0) + listReporters();
  return listedCount;
}

}  // end namespace Catch
// end catch_list.cpp
// start catch_matchers.cpp

namespace Catch {
namespace Matchers {
namespace Impl {

std::string MatcherUntypedBase::toString() const {
  if (m_cachedToString.empty()) m_cachedToString = describe();
  return m_cachedToString;
}

MatcherUntypedBase::~MatcherUntypedBase() = default;

}  // namespace Impl
}  // namespace Matchers

using namespace Matchers;
using Matchers::Impl::MatcherBase;

}  // namespace Catch
// end catch_matchers.cpp
// start catch_matchers_floating.cpp

// start catch_polyfills.hpp

namespace Catch {
bool isnan(float f);
bool isnan(double d);
}  // namespace Catch

// end catch_polyfills.hpp
// start catch_to_string.hpp

#include <string>

namespace Catch {
template <typename T>
std::string to_string(T const& t) {
#if defined(CATCH_CONFIG_CPP11_TO_STRING)
  return std::to_string(t);
#else
  ReusableStringStream rss;
  rss << t;
  return rss.str();
#endif
}
}  // end namespace Catch

// end catch_to_string.hpp
#include <cstdint>
#include <cstdlib>
#include <cstring>

namespace Catch {
namespace Matchers {
namespace Floating {
enum class FloatingPointKind : uint8_t { Float, Double };
}
}  // namespace Matchers
}  // namespace Catch

namespace {

template <typename T>
struct Converter;

template <>
struct Converter<float> {
  static_assert(sizeof(float) == sizeof(int32_t),
                "Important ULP matcher assumption violated");
  Converter(float f) { std::memcpy(&i, &f, sizeof(f)); }
  int32_t i;
};

template <>
struct Converter<double> {
  static_assert(sizeof(double) == sizeof(int64_t),
                "Important ULP matcher assumption violated");
  Converter(double d) { std::memcpy(&i, &d, sizeof(d)); }
  int64_t i;
};

template <typename T>
auto convert(T t) -> Converter<T> {
  return Converter<T>(t);
}

template <typename FP>
bool almostEqualUlps(FP lhs, FP rhs, int maxUlpDiff) {
  // Comparison with NaN should always be false.
  // This way we can rule it out before getting into the ugly details
  if (Catch::isnan(lhs) || Catch::isnan(rhs)) { return false; }

  auto lc = convert(lhs);
  auto rc = convert(rhs);

  if ((lc.i < 0) != (rc.i < 0)) {
    // Potentially we can have +0 and -0
    return lhs == rhs;
  }

  auto ulpDiff = std::abs(lc.i - rc.i);
  return ulpDiff <= maxUlpDiff;
}

}  // namespace

namespace Catch {
namespace Matchers {
namespace Floating {
WithinAbsMatcher::WithinAbsMatcher(double target, double margin)
    : m_target{target}, m_margin{margin} {
  CATCH_ENFORCE(
      margin >= 0,
      "Invalid margin: " << margin << '.' << " Margin has to be non-negative.");
}

// Performs equivalent check of std::fabs(lhs - rhs) <= margin
// But without the subtraction to allow for INFINITY in comparison
bool WithinAbsMatcher::match(double const& matchee) const {
  return (matchee + m_margin >= m_target) && (m_target + m_margin >= matchee);
}

std::string WithinAbsMatcher::describe() const {
  return "is within " + ::Catch::Detail::stringify(m_margin) + " of " +
         ::Catch::Detail::stringify(m_target);
}

WithinUlpsMatcher::WithinUlpsMatcher(double target, int ulps,
                                     FloatingPointKind baseType)
    : m_target{target}, m_ulps{ulps}, m_type{baseType} {
  CATCH_ENFORCE(ulps >= 0,
                "Invalid ULP setting: " << ulps << '.'
                                        << " ULPs have to be non-negative.");
}

#if defined(__clang__)
#pragma clang diagnostic push
// Clang <3.5 reports on the default branch in the switch below
#pragma clang diagnostic ignored "-Wunreachable-code"
#endif

bool WithinUlpsMatcher::match(double const& matchee) const {
  switch (m_type) {
    case FloatingPointKind::Float:
      return almostEqualUlps<float>(static_cast<float>(matchee),
                                    static_cast<float>(m_target), m_ulps);
    case FloatingPointKind::Double:
      return almostEqualUlps<double>(matchee, m_target, m_ulps);
    default:
      CATCH_INTERNAL_ERROR("Unknown FloatingPointKind value");
  }
}

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

std::string WithinUlpsMatcher::describe() const {
  return "is within " + Catch::to_string(m_ulps) + " ULPs of " +
         ::Catch::Detail::stringify(m_target) +
         ((m_type == FloatingPointKind::Float) ? "f" : "");
}

}  // namespace Floating

Floating::WithinUlpsMatcher WithinULP(double target, int maxUlpDiff) {
  return Floating::WithinUlpsMatcher(target, maxUlpDiff,
                                     Floating::FloatingPointKind::Double);
}

Floating::WithinUlpsMatcher WithinULP(float target, int maxUlpDiff) {
  return Floating::WithinUlpsMatcher(target, maxUlpDiff,
                                     Floating::FloatingPointKind::Float);
}

Floating::WithinAbsMatcher WithinAbs(double target, double margin) {
  return Floating::WithinAbsMatcher(target, margin);
}

}  // namespace Matchers
}  // namespace Catch

// end catch_matchers_floating.cpp
// start catch_matchers_generic.cpp

std::string Catch::Matchers::Generic::Detail::finalizeDescription(
    const std::string& desc) {
  if (desc.empty()) {
    return "matches undescribed predicate";
  } else {
    return "matches predicate: \"" + desc + '"';
  }
}
// end catch_matchers_generic.cpp
// start catch_matchers_string.cpp

#include <regex>

namespace Catch {
namespace Matchers {

namespace StdString {

CasedString::CasedString(std::string const& str,
                         CaseSensitive::Choice caseSensitivity)
    : m_caseSensitivity(caseSensitivity), m_str(adjustString(str)) {}
std::string CasedString::adjustString(std::string const& str) const {
  return m_caseSensitivity == CaseSensitive::No ? toLower(str) : str;
}
std::string CasedString::caseSensitivitySuffix() const {
  return m_caseSensitivity == CaseSensitive::No ? " (case insensitive)"
                                                : std::string();
}

StringMatcherBase::StringMatcherBase(std::string const& operation,
                                     CasedString const& comparator)
    : m_comparator(comparator), m_operation(operation) {}

std::string StringMatcherBase::describe() const {
  std::string description;
  description.reserve(5 + m_operation.size() + m_comparator.m_str.size() +
                      m_comparator.caseSensitivitySuffix().size());
  description += m_operation;
  description += ": \"";
  description += m_comparator.m_str;
  description += "\"";
  description += m_comparator.caseSensitivitySuffix();
  return description;
}

EqualsMatcher::EqualsMatcher(CasedString const& comparator)
    : StringMatcherBase("equals", comparator) {}

bool EqualsMatcher::match(std::string const& source) const {
  return m_comparator.adjustString(source) == m_comparator.m_str;
}

ContainsMatcher::ContainsMatcher(CasedString const& comparator)
    : StringMatcherBase("contains", comparator) {}

bool ContainsMatcher::match(std::string const& source) const {
  return contains(m_comparator.adjustString(source), m_comparator.m_str);
}

StartsWithMatcher::StartsWithMatcher(CasedString const& comparator)
    : StringMatcherBase("starts with", comparator) {}

bool StartsWithMatcher::match(std::string const& source) const {
  return startsWith(m_comparator.adjustString(source), m_comparator.m_str);
}

EndsWithMatcher::EndsWithMatcher(CasedString const& comparator)
    : StringMatcherBase("ends with", comparator) {}

bool EndsWithMatcher::match(std::string const& source) const {
  return endsWith(m_comparator.adjustString(source), m_comparator.m_str);
}

RegexMatcher::RegexMatcher(std::string regex,
                           CaseSensitive::Choice caseSensitivity)
    : m_regex(std::move(regex)), m_caseSensitivity(caseSensitivity) {}

bool RegexMatcher::match(std::string const& matchee) const {
  auto flags =
      std::regex::ECMAScript;  // ECMAScript is the default syntax option anyway
  if (m_caseSensitivity == CaseSensitive::Choice::No) {
    flags |= std::regex::icase;
  }
  auto reg = std::regex(m_regex, flags);
  return std::regex_match(matchee, reg);
}

std::string RegexMatcher::describe() const {
  return "matches " + ::Catch::Detail::stringify(m_regex) +
         ((m_caseSensitivity == CaseSensitive::Choice::Yes)
              ? " case sensitively"
              : " case insensitively");
}

}  // namespace StdString

StdString::EqualsMatcher Equals(std::string const& str,
                                CaseSensitive::Choice caseSensitivity) {
  return StdString::EqualsMatcher(StdString::CasedString(str, caseSensitivity));
}
StdString::ContainsMatcher Contains(std::string const& str,
                                    CaseSensitive::Choice caseSensitivity) {
  return StdString::ContainsMatcher(
      StdString::CasedString(str, caseSensitivity));
}
StdString::EndsWithMatcher EndsWith(std::string const& str,
                                    CaseSensitive::Choice caseSensitivity) {
  return StdString::EndsWithMatcher(
      StdString::CasedString(str, caseSensitivity));
}
StdString::StartsWithMatcher StartsWith(std::string const& str,
                                        CaseSensitive::Choice caseSensitivity) {
  return StdString::StartsWithMatcher(
      StdString::CasedString(str, caseSensitivity));
}

StdString::RegexMatcher Matches(std::string const& regex,
                                CaseSensitive::Choice caseSensitivity) {
  return StdString::RegexMatcher(regex, caseSensitivity);
}

}  // namespace Matchers
}  // namespace Catch
// end catch_matchers_string.cpp
// start catch_message.cpp

// start catch_uncaught_exceptions.h

namespace Catch {
bool uncaught_exceptions();
}  // end namespace Catch

// end catch_uncaught_exceptions.h
#include <cassert>
#include <stack>

namespace Catch {

MessageInfo::MessageInfo(StringRef const& _macroName,
                         SourceLineInfo const& _lineInfo,
                         ResultWas::OfType _type)
    : macroName(_macroName),
      lineInfo(_lineInfo),
      type(_type),
      sequence(++globalCount) {}

bool MessageInfo::operator==(MessageInfo const& other) const {
  return sequence == other.sequence;
}

bool MessageInfo::operator<(MessageInfo const& other) const {
  return sequence < other.sequence;
}

// This may need protecting if threading support is added
unsigned int MessageInfo::globalCount = 0;

////////////////////////////////////////////////////////////////////////////

Catch::MessageBuilder::MessageBuilder(StringRef const& macroName,
                                      SourceLineInfo const& lineInfo,
                                      ResultWas::OfType type)
    : m_info(macroName, lineInfo, type) {}

////////////////////////////////////////////////////////////////////////////

ScopedMessage::ScopedMessage(MessageBuilder const& builder)
    : m_info(builder.m_info) {
  m_info.message = builder.m_stream.str();
  getResultCapture().pushScopedMessage(m_info);
}

ScopedMessage::~ScopedMessage() {
  if (!uncaught_exceptions()) { getResultCapture().popScopedMessage(m_info); }
}

Capturer::Capturer(StringRef macroName, SourceLineInfo const& lineInfo,
                   ResultWas::OfType resultType, StringRef names) {
  auto trimmed = [&](size_t start, size_t end) {
    while (names[start] == ',' || isspace(names[start])) { ++start; }
    while (names[end] == ',' || isspace(names[end])) { --end; }
    return names.substr(start, end - start + 1);
  };

  size_t start = 0;
  std::stack<char> openings;
  for (size_t pos = 0; pos < names.size(); ++pos) {
    char c = names[pos];
    switch (c) {
      case '[':
      case '{':
      case '(':
        // It is basically impossible to disambiguate between
        // comparison and start of template args in this context
        //            case '<':
        openings.push(c);
        break;
      case ']':
      case '}':
      case ')':
        //           case '>':
        openings.pop();
        break;
      case ',':
        if (start != pos && openings.size() == 0) {
          m_messages.emplace_back(macroName, lineInfo, resultType);
          m_messages.back().message = trimmed(start, pos);
          m_messages.back().message += " := ";
          start = pos;
        }
    }
  }
  assert(openings.size() == 0 && "Mismatched openings");
  m_messages.emplace_back(macroName, lineInfo, resultType);
  m_messages.back().message = trimmed(start, names.size() - 1);
  m_messages.back().message += " := ";
}
Capturer::~Capturer() {
  if (!uncaught_exceptions()) {
    assert(m_captured == m_messages.size());
    for (size_t i = 0; i < m_captured; ++i)
      m_resultCapture.popScopedMessage(m_messages[i]);
  }
}

void Capturer::captureValue(size_t index, std::string const& value) {
  assert(index < m_messages.size());
  m_messages[index].message += value;
  m_resultCapture.pushScopedMessage(m_messages[index]);
  m_captured++;
}

}  // end namespace Catch
// end catch_message.cpp
// start catch_output_redirect.cpp

// start catch_output_redirect.h
#ifndef TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
#define TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H

#include <cstdio>
#include <iosfwd>
#include <string>

namespace Catch {

class RedirectedStream {
  std::ostream& m_originalStream;
  std::ostream& m_redirectionStream;
  std::streambuf* m_prevBuf;

 public:
  RedirectedStream(std::ostream& originalStream,
                   std::ostream& redirectionStream);
  ~RedirectedStream();
};

class RedirectedStdOut {
  ReusableStringStream m_rss;
  RedirectedStream m_cout;

 public:
  RedirectedStdOut();
  auto str() const -> std::string;
};

// StdErr has two constituent streams in C++, std::cerr and std::clog
// This means that we need to redirect 2 streams into 1 to keep proper
// order of writes
class RedirectedStdErr {
  ReusableStringStream m_rss;
  RedirectedStream m_cerr;
  RedirectedStream m_clog;

 public:
  RedirectedStdErr();
  auto str() const -> std::string;
};

#if defined(CATCH_CONFIG_NEW_CAPTURE)

// Windows's implementation of std::tmpfile is terrible (it tries
// to create a file inside system folder, thus requiring elevated
// privileges for the binary), so we have to use tmpnam(_s) and
// create the file ourselves there.
class TempFile {
 public:
  TempFile(TempFile const&) = delete;
  TempFile& operator=(TempFile const&) = delete;
  TempFile(TempFile&&) = delete;
  TempFile& operator=(TempFile&&) = delete;

  TempFile();
  ~TempFile();

  std::FILE* getFile();
  std::string getContents();

 private:
  std::FILE* m_file = nullptr;
#if defined(_MSC_VER)
  char m_buffer[L_tmpnam] = {0};
#endif
};

class OutputRedirect {
 public:
  OutputRedirect(OutputRedirect const&) = delete;
  OutputRedirect& operator=(OutputRedirect const&) = delete;
  OutputRedirect(OutputRedirect&&) = delete;
  OutputRedirect& operator=(OutputRedirect&&) = delete;

  OutputRedirect(std::string& stdout_dest, std::string& stderr_dest);
  ~OutputRedirect();

 private:
  int m_originalStdout = -1;
  int m_originalStderr = -1;
  TempFile m_stdoutFile;
  TempFile m_stderrFile;
  std::string& m_stdoutDest;
  std::string& m_stderrDest;
};

#endif

}  // end namespace Catch

#endif  // TWOBLUECUBES_CATCH_OUTPUT_REDIRECT_H
// end catch_output_redirect.h
#include <cstdio>
#include <cstring>
#include <fstream>
#include <sstream>
#include <stdexcept>

#if defined(CATCH_CONFIG_NEW_CAPTURE)
#if defined(_MSC_VER)
#include <io.h>  //_dup and _dup2
#define dup _dup
#define dup2 _dup2
#define fileno _fileno
#else
#include <unistd.h>  // dup and dup2
#endif
#endif

namespace Catch {

RedirectedStream::RedirectedStream(std::ostream& originalStream,
                                   std::ostream& redirectionStream)
    : m_originalStream(originalStream),
      m_redirectionStream(redirectionStream),
      m_prevBuf(m_originalStream.rdbuf()) {
  m_originalStream.rdbuf(m_redirectionStream.rdbuf());
}

RedirectedStream::~RedirectedStream() { m_originalStream.rdbuf(m_prevBuf); }

RedirectedStdOut::RedirectedStdOut() : m_cout(Catch::cout(), m_rss.get()) {}
auto RedirectedStdOut::str() const -> std::string { return m_rss.str(); }

RedirectedStdErr::RedirectedStdErr()
    : m_cerr(Catch::cerr(), m_rss.get()), m_clog(Catch::clog(), m_rss.get()) {}
auto RedirectedStdErr::str() const -> std::string { return m_rss.str(); }

#if defined(CATCH_CONFIG_NEW_CAPTURE)

#if defined(_MSC_VER)
TempFile::TempFile() {
  if (tmpnam_s(m_buffer)) {
    CATCH_RUNTIME_ERROR("Could not get a temp filename");
  }
  if (fopen_s(&m_file, m_buffer, "w")) {
    char buffer[100];
    if (strerror_s(buffer, errno)) {
      CATCH_RUNTIME_ERROR("Could not translate errno to a string");
    }
    CATCH_RUNTIME_ERROR("Coul dnot open the temp file: '"
                        << m_buffer << "' because: " << buffer);
  }
}
#else
TempFile::TempFile() {
  m_file = std::tmpfile();
  if (!m_file) { CATCH_RUNTIME_ERROR("Could not create a temp file."); }
}

#endif

TempFile::~TempFile() {
  // TBD: What to do about errors here?
  std::fclose(m_file);
  // We manually create the file on Windows only, on Linux
  // it will be autodeleted
#if defined(_MSC_VER)
  std::remove(m_buffer);
#endif
}

FILE* TempFile::getFile() { return m_file; }

std::string TempFile::getContents() {
  std::stringstream sstr;
  char buffer[100] = {};
  std::rewind(m_file);
  while (std::fgets(buffer, sizeof(buffer), m_file)) { sstr << buffer; }
  return sstr.str();
}

OutputRedirect::OutputRedirect(std::string& stdout_dest,
                               std::string& stderr_dest)
    : m_originalStdout(dup(1)),
      m_originalStderr(dup(2)),
      m_stdoutDest(stdout_dest),
      m_stderrDest(stderr_dest) {
  dup2(fileno(m_stdoutFile.getFile()), 1);
  dup2(fileno(m_stderrFile.getFile()), 2);
}

OutputRedirect::~OutputRedirect() {
  Catch::cout() << std::flush;
  fflush(stdout);
  // Since we support overriding these streams, we flush cerr
  // even though std::cerr is unbuffered
  Catch::cerr() << std::flush;
  Catch::clog() << std::flush;
  fflush(stderr);

  dup2(m_originalStdout, 1);
  dup2(m_originalStderr, 2);

  m_stdoutDest += m_stdoutFile.getContents();
  m_stderrDest += m_stderrFile.getContents();
}

#endif  // CATCH_CONFIG_NEW_CAPTURE

}  // namespace Catch

#if defined(CATCH_CONFIG_NEW_CAPTURE)
#if defined(_MSC_VER)
#undef dup
#undef dup2
#undef fileno
#endif
#endif
// end catch_output_redirect.cpp
// start catch_polyfills.cpp

#include <cmath>

namespace Catch {

#if !defined(CATCH_CONFIG_POLYFILL_ISNAN)
bool isnan(float f) { return std::isnan(f); }
bool isnan(double d) { return std::isnan(d); }
#else
// For now we only use this for embarcadero
bool isnan(float f) { return std::_isnan(f); }
bool isnan(double d) { return std::_isnan(d); }
#endif

}  // end namespace Catch
// end catch_polyfills.cpp
// start catch_random_number_generator.cpp

namespace Catch {

std::mt19937& rng() {
  static std::mt19937 s_rng;
  return s_rng;
}

void seedRng(IConfig const& config) {
  if (config.rngSeed() != 0) {
    std::srand(config.rngSeed());
    rng().seed(config.rngSeed());
  }
}

unsigned int rngSeed() { return getCurrentContext().getConfig()->rngSeed(); }
}  // namespace Catch
// end catch_random_number_generator.cpp
// start catch_registry_hub.cpp

// start catch_test_case_registry_impl.h

#include <algorithm>
#include <ios>
#include <set>
#include <vector>

namespace Catch {

class TestCase;
struct IConfig;

std::vector<TestCase> sortTests(IConfig const& config,
                                std::vector<TestCase> const& unsortedTestCases);
bool matchTest(TestCase const& testCase, TestSpec const& testSpec,
               IConfig const& config);

void enforceNoDuplicateTestCases(std::vector<TestCase> const& functions);

std::vector<TestCase> filterTests(std::vector<TestCase> const& testCases,
                                  TestSpec const& testSpec,
                                  IConfig const& config);
std::vector<TestCase> const& getAllTestCasesSorted(IConfig const& config);

class TestRegistry : public ITestCaseRegistry {
 public:
  virtual ~TestRegistry() = default;

  virtual void registerTest(TestCase const& testCase);

  std::vector<TestCase> const& getAllTests() const override;
  std::vector<TestCase> const& getAllTestsSorted(
      IConfig const& config) const override;

 private:
  std::vector<TestCase> m_functions;
  mutable RunTests::InWhatOrder m_currentSortOrder =
      RunTests::InDeclarationOrder;
  mutable std::vector<TestCase> m_sortedFunctions;
  std::size_t m_unnamedCount = 0;
  std::ios_base::Init m_ostreamInit;  // Forces cout/ cerr to be initialised
};

///////////////////////////////////////////////////////////////////////////

class TestInvokerAsFunction : public ITestInvoker {
  void (*m_testAsFunction)();

 public:
  TestInvokerAsFunction(void (*testAsFunction)()) noexcept;

  void invoke() const override;
};

std::string extractClassName(StringRef const& classOrQualifiedMethodName);

///////////////////////////////////////////////////////////////////////////

}  // end namespace Catch

// end catch_test_case_registry_impl.h
// start catch_reporter_registry.h

#include <map>

namespace Catch {

class ReporterRegistry : public IReporterRegistry {
 public:
  ~ReporterRegistry() override;

  IStreamingReporterPtr create(std::string const& name,
                               IConfigPtr const& config) const override;

  void registerReporter(std::string const& name,
                        IReporterFactoryPtr const& factory);
  void registerListener(IReporterFactoryPtr const& factory);

  FactoryMap const& getFactories() const override;
  Listeners const& getListeners() const override;

 private:
  FactoryMap m_factories;
  Listeners m_listeners;
};
}  // namespace Catch

// end catch_reporter_registry.h
// start catch_tag_alias_registry.h

// start catch_tag_alias.h

#include <string>

namespace Catch {

struct TagAlias {
  TagAlias(std::string const& _tag, SourceLineInfo _lineInfo);

  std::string tag;
  SourceLineInfo lineInfo;
};

}  // end namespace Catch

// end catch_tag_alias.h
#include <map>

namespace Catch {

class TagAliasRegistry : public ITagAliasRegistry {
 public:
  ~TagAliasRegistry() override;
  TagAlias const* find(std::string const& alias) const override;
  std::string expandAliases(
      std::string const& unexpandedTestSpec) const override;
  void add(std::string const& alias, std::string const& tag,
           SourceLineInfo const& lineInfo);

 private:
  std::map<std::string, TagAlias> m_registry;
};

}  // end namespace Catch

// end catch_tag_alias_registry.h
// start catch_startup_exception_registry.h

#include <exception>
#include <vector>

namespace Catch {

class StartupExceptionRegistry {
 public:
  void add(std::exception_ptr const& exception) noexcept;
  std::vector<std::exception_ptr> const& getExceptions() const noexcept;

 private:
  std::vector<std::exception_ptr> m_exceptions;
};

}  // end namespace Catch

// end catch_startup_exception_registry.h
// start catch_singletons.hpp

namespace Catch {

struct ISingleton {
  virtual ~ISingleton();
};

void addSingleton(ISingleton* singleton);
void cleanupSingletons();

template <typename SingletonImplT, typename InterfaceT = SingletonImplT,
          typename MutableInterfaceT = InterfaceT>
class Singleton : SingletonImplT, public ISingleton {
  static auto getInternal() -> Singleton* {
    static Singleton* s_instance = nullptr;
    if (!s_instance) {
      s_instance = new Singleton;
      addSingleton(s_instance);
    }
    return s_instance;
  }

 public:
  static auto get() -> InterfaceT const& { return *getInternal(); }
  static auto getMutable() -> MutableInterfaceT& { return *getInternal(); }
};

}  // namespace Catch

// end catch_singletons.hpp
namespace Catch {

namespace {

class RegistryHub : public IRegistryHub,
                    public IMutableRegistryHub,
                    private NonCopyable {
 public:  // IRegistryHub
  RegistryHub() = default;
  IReporterRegistry const& getReporterRegistry() const override {
    return m_reporterRegistry;
  }
  ITestCaseRegistry const& getTestCaseRegistry() const override {
    return m_testCaseRegistry;
  }
  IExceptionTranslatorRegistry const& getExceptionTranslatorRegistry()
      const override {
    return m_exceptionTranslatorRegistry;
  }
  ITagAliasRegistry const& getTagAliasRegistry() const override {
    return m_tagAliasRegistry;
  }
  StartupExceptionRegistry const& getStartupExceptionRegistry() const override {
    return m_exceptionRegistry;
  }

 public:  // IMutableRegistryHub
  void registerReporter(std::string const& name,
                        IReporterFactoryPtr const& factory) override {
    m_reporterRegistry.registerReporter(name, factory);
  }
  void registerListener(IReporterFactoryPtr const& factory) override {
    m_reporterRegistry.registerListener(factory);
  }
  void registerTest(TestCase const& testInfo) override {
    m_testCaseRegistry.registerTest(testInfo);
  }
  void registerTranslator(const IExceptionTranslator* translator) override {
    m_exceptionTranslatorRegistry.registerTranslator(translator);
  }
  void registerTagAlias(std::string const& alias, std::string const& tag,
                        SourceLineInfo const& lineInfo) override {
    m_tagAliasRegistry.add(alias, tag, lineInfo);
  }
  void registerStartupException() noexcept override {
    m_exceptionRegistry.add(std::current_exception());
  }

 private:
  TestRegistry m_testCaseRegistry;
  ReporterRegistry m_reporterRegistry;
  ExceptionTranslatorRegistry m_exceptionTranslatorRegistry;
  TagAliasRegistry m_tagAliasRegistry;
  StartupExceptionRegistry m_exceptionRegistry;
};
}  // namespace

using RegistryHubSingleton =
    Singleton<RegistryHub, IRegistryHub, IMutableRegistryHub>;

IRegistryHub const& getRegistryHub() { return RegistryHubSingleton::get(); }
IMutableRegistryHub& getMutableRegistryHub() {
  return RegistryHubSingleton::getMutable();
}
void cleanUp() {
  cleanupSingletons();
  cleanUpContext();
}
std::string translateActiveException() {
  return getRegistryHub()
      .getExceptionTranslatorRegistry()
      .translateActiveException();
}

}  // end namespace Catch
// end catch_registry_hub.cpp
// start catch_reporter_registry.cpp

namespace Catch {

ReporterRegistry::~ReporterRegistry() = default;

IStreamingReporterPtr ReporterRegistry::create(std::string const& name,
                                               IConfigPtr const& config) const {
  auto it = m_factories.find(name);
  if (it == m_factories.end()) return nullptr;
  return it->second->create(ReporterConfig(config));
}

void ReporterRegistry::registerReporter(std::string const& name,
                                        IReporterFactoryPtr const& factory) {
  m_factories.emplace(name, factory);
}
void ReporterRegistry::registerListener(IReporterFactoryPtr const& factory) {
  m_listeners.push_back(factory);
}

IReporterRegistry::FactoryMap const& ReporterRegistry::getFactories() const {
  return m_factories;
}
IReporterRegistry::Listeners const& ReporterRegistry::getListeners() const {
  return m_listeners;
}

}  // namespace Catch
// end catch_reporter_registry.cpp
// start catch_result_type.cpp

namespace Catch {

bool isOk(ResultWas::OfType resultType) {
  return (resultType & ResultWas::FailureBit) == 0;
}
bool isJustInfo(int flags) { return flags == ResultWas::Info; }

ResultDisposition::Flags operator|(ResultDisposition::Flags lhs,
                                   ResultDisposition::Flags rhs) {
  return static_cast<ResultDisposition::Flags>(static_cast<int>(lhs) |
                                               static_cast<int>(rhs));
}

bool shouldContinueOnFailure(int flags) {
  return (flags & ResultDisposition::ContinueOnFailure) != 0;
}
bool shouldSuppressFailure(int flags) {
  return (flags & ResultDisposition::SuppressFail) != 0;
}

}  // end namespace Catch
// end catch_result_type.cpp
// start catch_run_context.cpp

#include <algorithm>
#include <cassert>
#include <sstream>

namespace Catch {

namespace Generators {
struct GeneratorTracker : TestCaseTracking::TrackerBase, IGeneratorTracker {
  size_t m_index = static_cast<size_t>(-1);
  GeneratorBasePtr m_generator;

  GeneratorTracker(TestCaseTracking::NameAndLocation const& nameAndLocation,
                   TrackerContext& ctx, ITracker* parent)
      : TrackerBase(nameAndLocation, ctx, parent) {}
  ~GeneratorTracker();

  static GeneratorTracker& acquire(
      TrackerContext& ctx,
      TestCaseTracking::NameAndLocation const& nameAndLocation) {
    std::shared_ptr<GeneratorTracker> tracker;

    ITracker& currentTracker = ctx.currentTracker();
    if (TestCaseTracking::ITrackerPtr childTracker =
            currentTracker.findChild(nameAndLocation)) {
      assert(childTracker);
      assert(childTracker->isIndexTracker());
      tracker = std::static_pointer_cast<GeneratorTracker>(childTracker);
    } else {
      tracker = std::make_shared<GeneratorTracker>(nameAndLocation, ctx,
                                                   &currentTracker);
      currentTracker.addChild(tracker);
    }

    if (!ctx.completedCycle() && !tracker->isComplete()) {
      if (tracker->m_runState != ExecutingChildren &&
          tracker->m_runState != NeedsAnotherRun)
        tracker->moveNext();
      tracker->open();
    }

    return *tracker;
  }

  void moveNext() {
    m_index++;
    m_children.clear();
  }

  // TrackerBase interface
  bool isIndexTracker() const override { return true; }
  auto hasGenerator() const -> bool override { return !!m_generator; }
  void close() override {
    TrackerBase::close();
    if (m_runState == CompletedSuccessfully &&
        m_index < m_generator->size() - 1)
      m_runState = Executing;
  }

  // IGeneratorTracker interface
  auto getGenerator() const -> GeneratorBasePtr const& override {
    return m_generator;
  }
  void setGenerator(GeneratorBasePtr&& generator) override {
    m_generator = std::move(generator);
  }
  auto getIndex() const -> size_t override { return m_index; }
};
GeneratorTracker::~GeneratorTracker() {}
}  // namespace Generators

RunContext::RunContext(IConfigPtr const& _config,
                       IStreamingReporterPtr&& reporter)
    : m_runInfo(_config->name()),
      m_context(getCurrentMutableContext()),
      m_config(_config),
      m_reporter(std::move(reporter)),
      m_lastAssertionInfo{StringRef(), SourceLineInfo("", 0), StringRef(),
                          ResultDisposition::Normal},
      m_includeSuccessfulResults(
          m_config->includeSuccessfulResults() ||
          m_reporter->getPreferences().shouldReportAllAssertions) {
  m_context.setRunner(this);
  m_context.setConfig(m_config);
  m_context.setResultCapture(this);
  m_reporter->testRunStarting(m_runInfo);
}

RunContext::~RunContext() {
  m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, aborting()));
}

void RunContext::testGroupStarting(std::string const& testSpec,
                                   std::size_t groupIndex,
                                   std::size_t groupsCount) {
  m_reporter->testGroupStarting(GroupInfo(testSpec, groupIndex, groupsCount));
}

void RunContext::testGroupEnded(std::string const& testSpec,
                                Totals const& totals, std::size_t groupIndex,
                                std::size_t groupsCount) {
  m_reporter->testGroupEnded(TestGroupStats(
      GroupInfo(testSpec, groupIndex, groupsCount), totals, aborting()));
}

Totals RunContext::runTest(TestCase const& testCase) {
  Totals prevTotals = m_totals;

  std::string redirectedCout;
  std::string redirectedCerr;

  auto const& testInfo = testCase.getTestCaseInfo();

  m_reporter->testCaseStarting(testInfo);

  m_activeTestCase = &testCase;

  ITracker& rootTracker = m_trackerContext.startRun();
  assert(rootTracker.isSectionTracker());
  static_cast<SectionTracker&>(rootTracker)
      .addInitialFilters(m_config->getSectionsToRun());
  do {
    m_trackerContext.startCycle();
    m_testCaseTracker = &SectionTracker::acquire(
        m_trackerContext,
        TestCaseTracking::NameAndLocation(testInfo.name, testInfo.lineInfo));
    runCurrentTest(redirectedCout, redirectedCerr);
  } while (!m_testCaseTracker->isSuccessfullyCompleted() && !aborting());

  Totals deltaTotals = m_totals.delta(prevTotals);
  if (testInfo.expectedToFail() && deltaTotals.testCases.passed > 0) {
    deltaTotals.assertions.failed++;
    deltaTotals.testCases.passed--;
    deltaTotals.testCases.failed++;
  }
  m_totals.testCases += deltaTotals.testCases;
  m_reporter->testCaseEnded(TestCaseStats(testInfo, deltaTotals, redirectedCout,
                                          redirectedCerr, aborting()));

  m_activeTestCase = nullptr;
  m_testCaseTracker = nullptr;

  return deltaTotals;
}

IConfigPtr RunContext::config() const { return m_config; }

IStreamingReporter& RunContext::reporter() const { return *m_reporter; }

void RunContext::assertionEnded(AssertionResult const& result) {
  if (result.getResultType() == ResultWas::Ok) {
    m_totals.assertions.passed++;
    m_lastAssertionPassed = true;
  } else if (!result.isOk()) {
    m_lastAssertionPassed = false;
    if (m_activeTestCase->getTestCaseInfo().okToFail())
      m_totals.assertions.failedButOk++;
    else
      m_totals.assertions.failed++;
  } else {
    m_lastAssertionPassed = true;
  }

  // We have no use for the return value (whether messages should be cleared),
  // because messages were made scoped and should be let to clear themselves
  // out.
  static_cast<void>(
      m_reporter->assertionEnded(AssertionStats(result, m_messages, m_totals)));

  // Reset working state
  resetAssertionInfo();
  m_lastResult = result;
}
void RunContext::resetAssertionInfo() {
  m_lastAssertionInfo.macroName = StringRef();
  m_lastAssertionInfo.capturedExpression =
      "{Unknown expression after the reported line}"_sr;
}

bool RunContext::sectionStarted(SectionInfo const& sectionInfo,
                                Counts& assertions) {
  ITracker& sectionTracker = SectionTracker::acquire(
      m_trackerContext, TestCaseTracking::NameAndLocation(
                            sectionInfo.name, sectionInfo.lineInfo));
  if (!sectionTracker.isOpen()) return false;
  m_activeSections.push_back(&sectionTracker);

  m_lastAssertionInfo.lineInfo = sectionInfo.lineInfo;

  m_reporter->sectionStarting(sectionInfo);

  assertions = m_totals.assertions;

  return true;
}
auto RunContext::acquireGeneratorTracker(SourceLineInfo const& lineInfo)
    -> IGeneratorTracker& {
  using namespace Generators;
  GeneratorTracker& tracker = GeneratorTracker::acquire(
      m_trackerContext,
      TestCaseTracking::NameAndLocation("generator", lineInfo));
  assert(tracker.isOpen());
  m_lastAssertionInfo.lineInfo = lineInfo;
  return tracker;
}

bool RunContext::testForMissingAssertions(Counts& assertions) {
  if (assertions.total() != 0) return false;
  if (!m_config->warnAboutMissingAssertions()) return false;
  if (m_trackerContext.currentTracker().hasChildren()) return false;
  m_totals.assertions.failed++;
  assertions.failed++;
  return true;
}

void RunContext::sectionEnded(SectionEndInfo const& endInfo) {
  Counts assertions = m_totals.assertions - endInfo.prevAssertions;
  bool missingAssertions = testForMissingAssertions(assertions);

  if (!m_activeSections.empty()) {
    m_activeSections.back()->close();
    m_activeSections.pop_back();
  }

  m_reporter->sectionEnded(SectionStats(endInfo.sectionInfo, assertions,
                                        endInfo.durationInSeconds,
                                        missingAssertions));
  m_messages.clear();
}

void RunContext::sectionEndedEarly(SectionEndInfo const& endInfo) {
  if (m_unfinishedSections.empty())
    m_activeSections.back()->fail();
  else
    m_activeSections.back()->close();
  m_activeSections.pop_back();

  m_unfinishedSections.push_back(endInfo);
}
void RunContext::benchmarkStarting(BenchmarkInfo const& info) {
  m_reporter->benchmarkStarting(info);
}
void RunContext::benchmarkEnded(BenchmarkStats const& stats) {
  m_reporter->benchmarkEnded(stats);
}

void RunContext::pushScopedMessage(MessageInfo const& message) {
  m_messages.push_back(message);
}

void RunContext::popScopedMessage(MessageInfo const& message) {
  m_messages.erase(std::remove(m_messages.begin(), m_messages.end(), message),
                   m_messages.end());
}

std::string RunContext::getCurrentTestName() const {
  return m_activeTestCase ? m_activeTestCase->getTestCaseInfo().name
                          : std::string();
}

const AssertionResult* RunContext::getLastResult() const {
  return &(*m_lastResult);
}

void RunContext::exceptionEarlyReported() { m_shouldReportUnexpected = false; }

void RunContext::handleFatalErrorCondition(StringRef message) {
  // First notify reporter that bad things happened
  m_reporter->fatalErrorEncountered(message);

  // Don't rebuild the result -- the stringification itself can cause more fatal
  // errors Instead, fake a result data.
  AssertionResultData tempResult(ResultWas::FatalErrorCondition, {false});
  tempResult.message = message;
  AssertionResult result(m_lastAssertionInfo, tempResult);

  assertionEnded(result);

  handleUnfinishedSections();

  // Recreate section for test case (as we will lose the one that was in scope)
  auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
  SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);

  Counts assertions;
  assertions.failed = 1;
  SectionStats testCaseSectionStats(testCaseSection, assertions, 0, false);
  m_reporter->sectionEnded(testCaseSectionStats);

  auto const& testInfo = m_activeTestCase->getTestCaseInfo();

  Totals deltaTotals;
  deltaTotals.testCases.failed = 1;
  deltaTotals.assertions.failed = 1;
  m_reporter->testCaseEnded(TestCaseStats(testInfo, deltaTotals, std::string(),
                                          std::string(), false));
  m_totals.testCases.failed++;
  testGroupEnded(std::string(), m_totals, 1, 1);
  m_reporter->testRunEnded(TestRunStats(m_runInfo, m_totals, false));
}

bool RunContext::lastAssertionPassed() { return m_lastAssertionPassed; }

void RunContext::assertionPassed() {
  m_lastAssertionPassed = true;
  ++m_totals.assertions.passed;
  resetAssertionInfo();
}

bool RunContext::aborting() const {
  return m_totals.assertions.failed >=
         static_cast<std::size_t>(m_config->abortAfter());
}

void RunContext::runCurrentTest(std::string& redirectedCout,
                                std::string& redirectedCerr) {
  auto const& testCaseInfo = m_activeTestCase->getTestCaseInfo();
  SectionInfo testCaseSection(testCaseInfo.lineInfo, testCaseInfo.name);
  m_reporter->sectionStarting(testCaseSection);
  Counts prevAssertions = m_totals.assertions;
  double duration = 0;
  m_shouldReportUnexpected = true;
  m_lastAssertionInfo = {"TEST_CASE"_sr, testCaseInfo.lineInfo, StringRef(),
                         ResultDisposition::Normal};

  seedRng(*m_config);

  Timer timer;
  CATCH_TRY {
    if (m_reporter->getPreferences().shouldRedirectStdOut) {
#if !defined(CATCH_CONFIG_EXPERIMENTAL_REDIRECT)
      RedirectedStdOut redirectedStdOut;
      RedirectedStdErr redirectedStdErr;

      timer.start();
      invokeActiveTestCase();
      redirectedCout += redirectedStdOut.str();
      redirectedCerr += redirectedStdErr.str();
#else
      OutputRedirect r(redirectedCout, redirectedCerr);
      timer.start();
      invokeActiveTestCase();
#endif
    } else {
      timer.start();
      invokeActiveTestCase();
    }
    duration = timer.getElapsedSeconds();
  }
  CATCH_CATCH_ANON(TestFailureException&) {
    // This just means the test was aborted due to failure
  }
  CATCH_CATCH_ALL {
    // Under CATCH_CONFIG_FAST_COMPILE, unexpected exceptions under REQUIRE
    // assertions are reported without translation at the point of origin.
    if (m_shouldReportUnexpected) {
      AssertionReaction dummyReaction;
      handleUnexpectedInflightException(
          m_lastAssertionInfo, translateActiveException(), dummyReaction);
    }
  }
  Counts assertions = m_totals.assertions - prevAssertions;
  bool missingAssertions = testForMissingAssertions(assertions);

  m_testCaseTracker->close();
  handleUnfinishedSections();
  m_messages.clear();

  SectionStats testCaseSectionStats(testCaseSection, assertions, duration,
                                    missingAssertions);
  m_reporter->sectionEnded(testCaseSectionStats);
}

void RunContext::invokeActiveTestCase() {
  FatalConditionHandler fatalConditionHandler;  // Handle signals
  m_activeTestCase->invoke();
  fatalConditionHandler.reset();
}

void RunContext::handleUnfinishedSections() {
  // If sections ended prematurely due to an exception we stored their
  // infos here so we can tear them down outside the unwind process.
  for (auto it = m_unfinishedSections.rbegin(),
            itEnd = m_unfinishedSections.rend();
       it != itEnd; ++it)
    sectionEnded(*it);
  m_unfinishedSections.clear();
}

void RunContext::handleExpr(AssertionInfo const& info,
                            ITransientExpression const& expr,
                            AssertionReaction& reaction) {
  m_reporter->assertionStarting(info);

  bool negated = isFalseTest(info.resultDisposition);
  bool result = expr.getResult() != negated;

  if (result) {
    if (!m_includeSuccessfulResults) {
      assertionPassed();
    } else {
      reportExpr(info, ResultWas::Ok, &expr, negated);
    }
  } else {
    reportExpr(info, ResultWas::ExpressionFailed, &expr, negated);
    populateReaction(reaction);
  }
}
void RunContext::reportExpr(AssertionInfo const& info,
                            ResultWas::OfType resultType,
                            ITransientExpression const* expr, bool negated) {
  m_lastAssertionInfo = info;
  AssertionResultData data(resultType, LazyExpression(negated));

  AssertionResult assertionResult{info, data};
  assertionResult.m_resultData.lazyExpression.m_transientExpression = expr;

  assertionEnded(assertionResult);
}

void RunContext::handleMessage(AssertionInfo const& info,
                               ResultWas::OfType resultType,
                               StringRef const& message,
                               AssertionReaction& reaction) {
  m_reporter->assertionStarting(info);

  m_lastAssertionInfo = info;

  AssertionResultData data(resultType, LazyExpression(false));
  data.message = message;
  AssertionResult assertionResult{m_lastAssertionInfo, data};
  assertionEnded(assertionResult);
  if (!assertionResult.isOk()) populateReaction(reaction);
}
void RunContext::handleUnexpectedExceptionNotThrown(
    AssertionInfo const& info, AssertionReaction& reaction) {
  handleNonExpr(info, Catch::ResultWas::DidntThrowException, reaction);
}

void RunContext::handleUnexpectedInflightException(
    AssertionInfo const& info, std::string const& message,
    AssertionReaction& reaction) {
  m_lastAssertionInfo = info;

  AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
  data.message = message;
  AssertionResult assertionResult{info, data};
  assertionEnded(assertionResult);
  populateReaction(reaction);
}

void RunContext::populateReaction(AssertionReaction& reaction) {
  reaction.shouldDebugBreak = m_config->shouldDebugBreak();
  reaction.shouldThrow = aborting() || (m_lastAssertionInfo.resultDisposition &
                                        ResultDisposition::Normal);
}

void RunContext::handleIncomplete(AssertionInfo const& info) {
  m_lastAssertionInfo = info;

  AssertionResultData data(ResultWas::ThrewException, LazyExpression(false));
  data.message =
      "Exception translation was disabled by CATCH_CONFIG_FAST_COMPILE";
  AssertionResult assertionResult{info, data};
  assertionEnded(assertionResult);
}
void RunContext::handleNonExpr(AssertionInfo const& info,
                               ResultWas::OfType resultType,
                               AssertionReaction& reaction) {
  m_lastAssertionInfo = info;

  AssertionResultData data(resultType, LazyExpression(false));
  AssertionResult assertionResult{info, data};
  assertionEnded(assertionResult);

  if (!assertionResult.isOk()) populateReaction(reaction);
}

IResultCapture& getResultCapture() {
  if (auto* capture = getCurrentContext().getResultCapture())
    return *capture;
  else
    CATCH_INTERNAL_ERROR("No result capture instance");
}
}  // namespace Catch
// end catch_run_context.cpp
// start catch_section.cpp

namespace Catch {

Section::Section(SectionInfo const& info)
    : m_info(info),
      m_sectionIncluded(
          getResultCapture().sectionStarted(m_info, m_assertions)) {
  m_timer.start();
}

Section::~Section() {
  if (m_sectionIncluded) {
    SectionEndInfo endInfo{m_info, m_assertions, m_timer.getElapsedSeconds()};
    if (uncaught_exceptions())
      getResultCapture().sectionEndedEarly(endInfo);
    else
      getResultCapture().sectionEnded(endInfo);
  }
}

// This indicates whether the section should be executed or not
Section::operator bool() const { return m_sectionIncluded; }

}  // end namespace Catch
// end catch_section.cpp
// start catch_section_info.cpp

namespace Catch {

SectionInfo::SectionInfo(SourceLineInfo const& _lineInfo,
                         std::string const& _name)
    : name(_name), lineInfo(_lineInfo) {}

}  // end namespace Catch
// end catch_section_info.cpp
// start catch_session.cpp

// start catch_session.h

#include <memory>

namespace Catch {

class Session : NonCopyable {
 public:
  Session();
  ~Session() override;

  void showHelp() const;
  void libIdentify();

  int applyCommandLine(int argc, char const* const* argv);
#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
  int applyCommandLine(int argc, wchar_t const* const* argv);
#endif

  void useConfigData(ConfigData const& configData);

  template <typename CharT>
  int run(int argc, CharT const* const argv[]) {
    if (m_startupExceptions) return 1;
    int returnCode = applyCommandLine(argc, argv);
    if (returnCode == 0) returnCode = run();
    return returnCode;
  }

  int run();

  clara::Parser const& cli() const;
  void cli(clara::Parser const& newParser);
  ConfigData& configData();
  Config& config();

 private:
  int runInternal();

  clara::Parser m_cli;
  ConfigData m_configData;
  std::shared_ptr<Config> m_config;
  bool m_startupExceptions = false;
};

}  // end namespace Catch

// end catch_session.h
// start catch_version.h

#include <iosfwd>

namespace Catch {

// Versioning information
struct Version {
  Version(Version const&) = delete;
  Version& operator=(Version const&) = delete;
  Version(unsigned int _majorVersion, unsigned int _minorVersion,
          unsigned int _patchNumber, char const* const _branchName,
          unsigned int _buildNumber);

  unsigned int const majorVersion;
  unsigned int const minorVersion;
  unsigned int const patchNumber;

  // buildNumber is only used if branchName is not null
  char const* const branchName;
  unsigned int const buildNumber;

  friend std::ostream& operator<<(std::ostream& os, Version const& version);
};

Version const& libraryVersion();
}  // namespace Catch

// end catch_version.h
#include <cstdlib>
#include <iomanip>

namespace Catch {

namespace {
const int MaxExitCode = 255;

IStreamingReporterPtr createReporter(std::string const& reporterName,
                                     IConfigPtr const& config) {
  auto reporter = Catch::getRegistryHub().getReporterRegistry().create(
      reporterName, config);
  CATCH_ENFORCE(reporter,
                "No reporter registered with name: '" << reporterName << "'");

  return reporter;
}

IStreamingReporterPtr makeReporter(std::shared_ptr<Config> const& config) {
  if (Catch::getRegistryHub().getReporterRegistry().getListeners().empty()) {
    return createReporter(config->getReporterName(), config);
  }

  auto multi = std::unique_ptr<ListeningReporter>(new ListeningReporter);

  auto const& listeners =
      Catch::getRegistryHub().getReporterRegistry().getListeners();
  for (auto const& listener : listeners) {
    multi->addListener(listener->create(Catch::ReporterConfig(config)));
  }
  multi->addReporter(createReporter(config->getReporterName(), config));
  return std::move(multi);
}

Catch::Totals runTests(std::shared_ptr<Config> const& config) {
  auto reporter = makeReporter(config);

  RunContext context(config, std::move(reporter));

  Totals totals;

  context.testGroupStarting(config->name(), 1, 1);

  TestSpec testSpec = config->testSpec();

  auto const& allTestCases = getAllTestCasesSorted(*config);
  for (auto const& testCase : allTestCases) {
    if (!context.aborting() && matchTest(testCase, testSpec, *config))
      totals += context.runTest(testCase);
    else
      context.reporter().skipTest(testCase);
  }

  if (config->warnAboutNoTests() && totals.testCases.total() == 0) {
    ReusableStringStream testConfig;

    bool first = true;
    for (const auto& input : config->getTestsOrTags()) {
      if (!first) { testConfig << ' '; }
      first = false;
      testConfig << input;
    }

    context.reporter().noMatchingTestCases(testConfig.str());
    totals.error = -1;
  }

  context.testGroupEnded(config->name(), totals, 1, 1);
  return totals;
}

void applyFilenamesAsTags(Catch::IConfig const& config) {
  auto& tests =
      const_cast<std::vector<TestCase>&>(getAllTestCasesSorted(config));
  for (auto& testCase : tests) {
    auto tags = testCase.tags;

    std::string filename = testCase.lineInfo.file;
    auto lastSlash = filename.find_last_of("\\/");
    if (lastSlash != std::string::npos) {
      filename.erase(0, lastSlash);
      filename[0] = '#';
    }

    auto lastDot = filename.find_last_of('.');
    if (lastDot != std::string::npos) { filename.erase(lastDot); }

    tags.push_back(std::move(filename));
    setTags(testCase, tags);
  }
}

}  // namespace

Session::Session() {
  static bool alreadyInstantiated = false;
  if (alreadyInstantiated) {
    CATCH_TRY {
      CATCH_INTERNAL_ERROR(
          "Only one instance of Catch::Session can ever be used");
    }
    CATCH_CATCH_ALL { getMutableRegistryHub().registerStartupException(); }
  }

  // There cannot be exceptions at startup in no-exception mode.
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  const auto& exceptions =
      getRegistryHub().getStartupExceptionRegistry().getExceptions();
  if (!exceptions.empty()) {
    m_startupExceptions = true;
    Colour colourGuard(Colour::Red);
    Catch::cerr() << "Errors occurred during startup!" << '\n';
    // iterate over all exceptions and notify user
    for (const auto& ex_ptr : exceptions) {
      try {
        std::rethrow_exception(ex_ptr);
      } catch (std::exception const& ex) {
        Catch::cerr() << Column(ex.what()).indent(2) << '\n';
      }
    }
  }
#endif

  alreadyInstantiated = true;
  m_cli = makeCommandLineParser(m_configData);
}
Session::~Session() { Catch::cleanUp(); }

void Session::showHelp() const {
  Catch::cout() << "\nCatch v" << libraryVersion() << "\n"
                << m_cli << std::endl
                << "For more detailed usage please see the project docs\n"
                << std::endl;
}
void Session::libIdentify() {
  Catch::cout() << std::left << std::setw(16) << "description: "
                << "A Catch test executable\n"
                << std::left << std::setw(16) << "category: "
                << "testframework\n"
                << std::left << std::setw(16) << "framework: "
                << "Catch Test\n"
                << std::left << std::setw(16) << "version: " << libraryVersion()
                << std::endl;
}

int Session::applyCommandLine(int argc, char const* const* argv) {
  if (m_startupExceptions) return 1;

  auto result = m_cli.parse(clara::Args(argc, argv));
  if (!result) {
    Catch::cerr() << Colour(Colour::Red) << "\nError(s) in input:\n"
                  << Column(result.errorMessage()).indent(2) << "\n\n";
    Catch::cerr() << "Run with -? for usage\n" << std::endl;
    return MaxExitCode;
  }

  if (m_configData.showHelp) showHelp();
  if (m_configData.libIdentify) libIdentify();
  m_config.reset();
  return 0;
}

#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(UNICODE)
int Session::applyCommandLine(int argc, wchar_t const* const* argv) {
  char** utf8Argv = new char*[argc];

  for (int i = 0; i < argc; ++i) {
    int bufSize =
        WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, NULL, 0, NULL, NULL);

    utf8Argv[i] = new char[bufSize];

    WideCharToMultiByte(CP_UTF8, 0, argv[i], -1, utf8Argv[i], bufSize, NULL,
                        NULL);
  }

  int returnCode = applyCommandLine(argc, utf8Argv);

  for (int i = 0; i < argc; ++i) delete[] utf8Argv[i];

  delete[] utf8Argv;

  return returnCode;
}
#endif

void Session::useConfigData(ConfigData const& configData) {
  m_configData = configData;
  m_config.reset();
}

int Session::run() {
  if ((m_configData.waitForKeypress & WaitForKeypress::BeforeStart) != 0) {
    Catch::cout() << "...waiting for enter/ return before starting"
                  << std::endl;
    static_cast<void>(std::getchar());
  }
  int exitCode = runInternal();
  if ((m_configData.waitForKeypress & WaitForKeypress::BeforeExit) != 0) {
    Catch::cout() << "...waiting for enter/ return before exiting, with code: "
                  << exitCode << std::endl;
    static_cast<void>(std::getchar());
  }
  return exitCode;
}

clara::Parser const& Session::cli() const { return m_cli; }
void Session::cli(clara::Parser const& newParser) { m_cli = newParser; }
ConfigData& Session::configData() { return m_configData; }
Config& Session::config() {
  if (!m_config) m_config = std::make_shared<Config>(m_configData);
  return *m_config;
}

int Session::runInternal() {
  if (m_startupExceptions) return 1;

  if (m_configData.showHelp || m_configData.libIdentify) { return 0; }

  CATCH_TRY {
    config();  // Force config to be constructed

    seedRng(*m_config);

    if (m_configData.filenamesAsTags) applyFilenamesAsTags(*m_config);

    // Handle list request
    if (Option<std::size_t> listed = list(config()))
      return static_cast<int>(*listed);

    auto totals = runTests(m_config);
    // Note that on unices only the lower 8 bits are usually used, clamping
    // the return value to 255 prevents false negative when some multiple
    // of 256 tests has failed
    return (std::min)(
        MaxExitCode,
        (std::max)(totals.error, static_cast<int>(totals.assertions.failed)));
  }
#if !defined(CATCH_CONFIG_DISABLE_EXCEPTIONS)
  catch (std::exception& ex) {
    Catch::cerr() << ex.what() << std::endl;
    return MaxExitCode;
  }
#endif
}

}  // end namespace Catch
// end catch_session.cpp
// start catch_singletons.cpp

#include <vector>

namespace Catch {

namespace {
static auto getSingletons() -> std::vector<ISingleton*>*& {
  static std::vector<ISingleton*>* g_singletons = nullptr;
  if (!g_singletons) g_singletons = new std::vector<ISingleton*>();
  return g_singletons;
}
}  // namespace

ISingleton::~ISingleton() {}

void addSingleton(ISingleton* singleton) {
  getSingletons()->push_back(singleton);
}
void cleanupSingletons() {
  auto& singletons = getSingletons();
  for (auto singleton : *singletons) delete singleton;
  delete singletons;
  singletons = nullptr;
}

}  // namespace Catch
// end catch_singletons.cpp
// start catch_startup_exception_registry.cpp

namespace Catch {
void StartupExceptionRegistry::add(
    std::exception_ptr const& exception) noexcept {
  CATCH_TRY { m_exceptions.push_back(exception); }
  CATCH_CATCH_ALL {
    // If we run out of memory during start-up there's really not a lot more we
    // can do about it
    std::terminate();
  }
}

std::vector<std::exception_ptr> const& StartupExceptionRegistry::getExceptions()
    const noexcept {
  return m_exceptions;
}

}  // end namespace Catch
// end catch_startup_exception_registry.cpp
// start catch_stream.cpp

#include <cstdio>
#include <fstream>
#include <iostream>
#include <memory>
#include <sstream>
#include <vector>

namespace Catch {

Catch::IStream::~IStream() = default;

namespace detail {
namespace {
template <typename WriterF, std::size_t bufferSize = 256>
class StreamBufImpl : public std::streambuf {
  char data[bufferSize];
  WriterF m_writer;

 public:
  StreamBufImpl() { setp(data, data + sizeof(data)); }

  ~StreamBufImpl() noexcept { StreamBufImpl::sync(); }

 private:
  int overflow(int c) override {
    sync();

    if (c != EOF) {
      if (pbase() == epptr())
        m_writer(std::string(1, static_cast<char>(c)));
      else
        sputc(static_cast<char>(c));
    }
    return 0;
  }

  int sync() override {
    if (pbase() != pptr()) {
      m_writer(std::string(
          pbase(), static_cast<std::string::size_type>(pptr() - pbase())));
      setp(pbase(), epptr());
    }
    return 0;
  }
};

///////////////////////////////////////////////////////////////////////////

struct OutputDebugWriter {
  void operator()(std::string const& str) { writeToDebugConsole(str); }
};

///////////////////////////////////////////////////////////////////////////

class FileStream : public IStream {
  mutable std::ofstream m_ofs;

 public:
  FileStream(StringRef filename) {
    m_ofs.open(filename.c_str());
    CATCH_ENFORCE(!m_ofs.fail(), "Unable to open file: '" << filename << "'");
  }
  ~FileStream() override = default;

 public:  // IStream
  std::ostream& stream() const override { return m_ofs; }
};

///////////////////////////////////////////////////////////////////////////

class CoutStream : public IStream {
  mutable std::ostream m_os;

 public:
  // Store the streambuf from cout up-front because
  // cout may get redirected when running tests
  CoutStream() : m_os(Catch::cout().rdbuf()) {}
  ~CoutStream() override = default;

 public:  // IStream
  std::ostream& stream() const override { return m_os; }
};

///////////////////////////////////////////////////////////////////////////

class DebugOutStream : public IStream {
  std::unique_ptr<StreamBufImpl<OutputDebugWriter>> m_streamBuf;
  mutable std::ostream m_os;

 public:
  DebugOutStream()
      : m_streamBuf(new StreamBufImpl<OutputDebugWriter>()),
        m_os(m_streamBuf.get()) {}

  ~DebugOutStream() override = default;

 public:  // IStream
  std::ostream& stream() const override { return m_os; }
};

}  // namespace
}  // namespace detail

///////////////////////////////////////////////////////////////////////////

auto makeStream(StringRef const& filename) -> IStream const* {
  if (filename.empty())
    return new detail::CoutStream();
  else if (filename[0] == '%') {
    if (filename == "%debug")
      return new detail::DebugOutStream();
    else
      CATCH_ERROR("Unrecognised stream: '" << filename << "'");
  } else
    return new detail::FileStream(filename);
}

// This class encapsulates the idea of a pool of ostringstreams that can be
// reused.
struct StringStreams {
  std::vector<std::unique_ptr<std::ostringstream>> m_streams;
  std::vector<std::size_t> m_unused;
  std::ostringstream m_referenceStream;  // Used for copy state/ flags from

  auto add() -> std::size_t {
    if (m_unused.empty()) {
      m_streams.push_back(
          std::unique_ptr<std::ostringstream>(new std::ostringstream));
      return m_streams.size() - 1;
    } else {
      auto index = m_unused.back();
      m_unused.pop_back();
      return index;
    }
  }

  void release(std::size_t index) {
    m_streams[index]->copyfmt(
        m_referenceStream);  // Restore initial flags and other state
    m_unused.push_back(index);
  }
};

ReusableStringStream::ReusableStringStream()
    : m_index(Singleton<StringStreams>::getMutable().add()),
      m_oss(Singleton<StringStreams>::getMutable().m_streams[m_index].get()) {}

ReusableStringStream::~ReusableStringStream() {
  static_cast<std::ostringstream*>(m_oss)->str("");
  m_oss->clear();
  Singleton<StringStreams>::getMutable().release(m_index);
}

auto ReusableStringStream::str() const -> std::string {
  return static_cast<std::ostringstream*>(m_oss)->str();
}

///////////////////////////////////////////////////////////////////////////

#ifndef CATCH_CONFIG_NOSTDOUT  // If you #define this you must implement these
                               // functions
std::ostream& cout() { return std::cout; }
std::ostream& cerr() { return std::cerr; }
std::ostream& clog() { return std::clog; }
#endif
}  // namespace Catch
// end catch_stream.cpp
// start catch_string_manip.cpp

#include <algorithm>
#include <cctype>
#include <cstring>
#include <ostream>

namespace Catch {

namespace {
char toLowerCh(char c) { return static_cast<char>(std::tolower(c)); }
}  // namespace

bool startsWith(std::string const& s, std::string const& prefix) {
  return s.size() >= prefix.size() &&
         std::equal(prefix.begin(), prefix.end(), s.begin());
}
bool startsWith(std::string const& s, char prefix) {
  return !s.empty() && s[0] == prefix;
}
bool endsWith(std::string const& s, std::string const& suffix) {
  return s.size() >= suffix.size() &&
         std::equal(suffix.rbegin(), suffix.rend(), s.rbegin());
}
bool endsWith(std::string const& s, char suffix) {
  return !s.empty() && s[s.size() - 1] == suffix;
}
bool contains(std::string const& s, std::string const& infix) {
  return s.find(infix) != std::string::npos;
}
void toLowerInPlace(std::string& s) {
  std::transform(s.begin(), s.end(), s.begin(), toLowerCh);
}
std::string toLower(std::string const& s) {
  std::string lc = s;
  toLowerInPlace(lc);
  return lc;
}
std::string trim(std::string const& str) {
  static char const* whitespaceChars = "\n\r\t ";
  std::string::size_type start = str.find_first_not_of(whitespaceChars);
  std::string::size_type end = str.find_last_not_of(whitespaceChars);

  return start != std::string::npos ? str.substr(start, 1 + end - start)
                                    : std::string();
}

bool replaceInPlace(std::string& str, std::string const& replaceThis,
                    std::string const& withThis) {
  bool replaced = false;
  std::size_t i = str.find(replaceThis);
  while (i != std::string::npos) {
    replaced = true;
    str = str.substr(0, i) + withThis + str.substr(i + replaceThis.size());
    if (i < str.size() - withThis.size())
      i = str.find(replaceThis, i + withThis.size());
    else
      i = std::string::npos;
  }
  return replaced;
}

pluralise::pluralise(std::size_t count, std::string const& label)
    : m_count(count), m_label(label) {}

std::ostream& operator<<(std::ostream& os, pluralise const& pluraliser) {
  os << pluraliser.m_count << ' ' << pluraliser.m_label;
  if (pluraliser.m_count != 1) os << 's';
  return os;
}

}  // namespace Catch
// end catch_string_manip.cpp
// start catch_stringref.cpp

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

#include <cstdint>
#include <cstring>
#include <ostream>

namespace {
const uint32_t byte_2_lead = 0xC0;
const uint32_t byte_3_lead = 0xE0;
const uint32_t byte_4_lead = 0xF0;
}  // namespace

namespace Catch {
StringRef::StringRef(char const* rawChars) noexcept
    : StringRef(rawChars,
                static_cast<StringRef::size_type>(std::strlen(rawChars))) {}

StringRef::operator std::string() const { return std::string(m_start, m_size); }

void StringRef::swap(StringRef& other) noexcept {
  std::swap(m_start, other.m_start);
  std::swap(m_size, other.m_size);
  std::swap(m_data, other.m_data);
}

auto StringRef::c_str() const -> char const* {
  if (isSubstring()) const_cast<StringRef*>(this)->takeOwnership();
  return m_start;
}
auto StringRef::currentData() const noexcept -> char const* { return m_start; }

auto StringRef::isOwned() const noexcept -> bool { return m_data != nullptr; }
auto StringRef::isSubstring() const noexcept -> bool {
  return m_start[m_size] != '\0';
}

void StringRef::takeOwnership() {
  if (!isOwned()) {
    m_data = new char[m_size + 1];
    memcpy(m_data, m_start, m_size);
    m_data[m_size] = '\0';
    m_start = m_data;
  }
}
auto StringRef::substr(size_type start, size_type size) const noexcept
    -> StringRef {
  if (start < m_size)
    return StringRef(m_start + start, size);
  else
    return StringRef();
}
auto StringRef::operator==(StringRef const& other) const noexcept -> bool {
  return size() == other.size() &&
         (std::strncmp(m_start, other.m_start, size()) == 0);
}
auto StringRef::operator!=(StringRef const& other) const noexcept -> bool {
  return !operator==(other);
}

auto StringRef::operator[](size_type index) const noexcept -> char {
  return m_start[index];
}

auto StringRef::numberOfCharacters() const noexcept -> size_type {
  size_type noChars = m_size;
  // Make adjustments for uft encodings
  for (size_type i = 0; i < m_size; ++i) {
    char c = m_start[i];
    if ((c & byte_2_lead) == byte_2_lead) {
      noChars--;
      if ((c & byte_3_lead) == byte_3_lead) noChars--;
      if ((c & byte_4_lead) == byte_4_lead) noChars--;
    }
  }
  return noChars;
}

auto operator+(StringRef const& lhs, StringRef const& rhs) -> std::string {
  std::string str;
  str.reserve(lhs.size() + rhs.size());
  str += lhs;
  str += rhs;
  return str;
}
auto operator+(StringRef const& lhs, const char* rhs) -> std::string {
  return std::string(lhs) + std::string(rhs);
}
auto operator+(char const* lhs, StringRef const& rhs) -> std::string {
  return std::string(lhs) + std::string(rhs);
}

auto operator<<(std::ostream& os, StringRef const& str) -> std::ostream& {
  return os.write(str.currentData(), str.size());
}

auto operator+=(std::string& lhs, StringRef const& rhs) -> std::string& {
  lhs.append(rhs.currentData(), rhs.size());
  return lhs;
}

}  // namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif
// end catch_stringref.cpp
// start catch_tag_alias.cpp

namespace Catch {
TagAlias::TagAlias(std::string const& _tag, SourceLineInfo _lineInfo)
    : tag(_tag), lineInfo(_lineInfo) {}
}  // namespace Catch
// end catch_tag_alias.cpp
// start catch_tag_alias_autoregistrar.cpp

namespace Catch {

RegistrarForTagAliases::RegistrarForTagAliases(char const* alias,
                                               char const* tag,
                                               SourceLineInfo const& lineInfo) {
  CATCH_TRY { getMutableRegistryHub().registerTagAlias(alias, tag, lineInfo); }
  CATCH_CATCH_ALL {
    // Do not throw when constructing global objects, instead register the
    // exception to be processed later
    getMutableRegistryHub().registerStartupException();
  }
}

}  // namespace Catch
// end catch_tag_alias_autoregistrar.cpp
// start catch_tag_alias_registry.cpp

#include <sstream>

namespace Catch {

TagAliasRegistry::~TagAliasRegistry() {}

TagAlias const* TagAliasRegistry::find(std::string const& alias) const {
  auto it = m_registry.find(alias);
  if (it != m_registry.end())
    return &(it->second);
  else
    return nullptr;
}

std::string TagAliasRegistry::expandAliases(
    std::string const& unexpandedTestSpec) const {
  std::string expandedTestSpec = unexpandedTestSpec;
  for (auto const& registryKvp : m_registry) {
    std::size_t pos = expandedTestSpec.find(registryKvp.first);
    if (pos != std::string::npos) {
      expandedTestSpec =
          expandedTestSpec.substr(0, pos) + registryKvp.second.tag +
          expandedTestSpec.substr(pos + registryKvp.first.size());
    }
  }
  return expandedTestSpec;
}

void TagAliasRegistry::add(std::string const& alias, std::string const& tag,
                           SourceLineInfo const& lineInfo) {
  CATCH_ENFORCE(startsWith(alias, "[@") && endsWith(alias, ']'),
                "error: tag alias, '" << alias
                                      << "' is not of the form [@alias name].\n"
                                      << lineInfo);

  CATCH_ENFORCE(
      m_registry.insert(std::make_pair(alias, TagAlias(tag, lineInfo))).second,
      "error: tag alias, '" << alias << "' already registered.\n"
                            << "\tFirst seen at: " << find(alias)->lineInfo
                            << "\n"
                            << "\tRedefined at: " << lineInfo);
}

ITagAliasRegistry::~ITagAliasRegistry() {}

ITagAliasRegistry const& ITagAliasRegistry::get() {
  return getRegistryHub().getTagAliasRegistry();
}

}  // end namespace Catch
// end catch_tag_alias_registry.cpp
// start catch_test_case_info.cpp

#include <algorithm>
#include <cctype>
#include <exception>
#include <sstream>

namespace Catch {

namespace {
TestCaseInfo::SpecialProperties parseSpecialTag(std::string const& tag) {
  if (startsWith(tag, '.') || tag == "!hide")
    return TestCaseInfo::IsHidden;
  else if (tag == "!throws")
    return TestCaseInfo::Throws;
  else if (tag == "!shouldfail")
    return TestCaseInfo::ShouldFail;
  else if (tag == "!mayfail")
    return TestCaseInfo::MayFail;
  else if (tag == "!nonportable")
    return TestCaseInfo::NonPortable;
  else if (tag == "!benchmark")
    return static_cast<TestCaseInfo::SpecialProperties>(
        TestCaseInfo::Benchmark | TestCaseInfo::IsHidden);
  else
    return TestCaseInfo::None;
}
bool isReservedTag(std::string const& tag) {
  return parseSpecialTag(tag) == TestCaseInfo::None && tag.size() > 0 &&
         !std::isalnum(static_cast<unsigned char>(tag[0]));
}
void enforceNotReservedTag(std::string const& tag,
                           SourceLineInfo const& _lineInfo) {
  CATCH_ENFORCE(!isReservedTag(tag),
                "Tag name: [" << tag << "] is not allowed.\n"
                              << "Tag names starting with non alpha-numeric "
                                 "characters are reserved\n"
                              << _lineInfo);
}
}  // namespace

TestCase makeTestCase(ITestInvoker* _testCase, std::string const& _className,
                      NameAndTags const& nameAndTags,
                      SourceLineInfo const& _lineInfo) {
  bool isHidden = false;

  // Parse out tags
  std::vector<std::string> tags;
  std::string desc, tag;
  bool inTag = false;
  std::string _descOrTags = nameAndTags.tags;
  for (char c : _descOrTags) {
    if (!inTag) {
      if (c == '[')
        inTag = true;
      else
        desc += c;
    } else {
      if (c == ']') {
        TestCaseInfo::SpecialProperties prop = parseSpecialTag(tag);
        if ((prop & TestCaseInfo::IsHidden) != 0)
          isHidden = true;
        else if (prop == TestCaseInfo::None)
          enforceNotReservedTag(tag, _lineInfo);

        tags.push_back(tag);
        tag.clear();
        inTag = false;
      } else
        tag += c;
    }
  }
  if (isHidden) { tags.push_back("."); }

  TestCaseInfo info(nameAndTags.name, _className, desc, tags, _lineInfo);
  return TestCase(_testCase, std::move(info));
}

void setTags(TestCaseInfo& testCaseInfo, std::vector<std::string> tags) {
  std::sort(begin(tags), end(tags));
  tags.erase(std::unique(begin(tags), end(tags)), end(tags));
  testCaseInfo.lcaseTags.clear();

  for (auto const& tag : tags) {
    std::string lcaseTag = toLower(tag);
    testCaseInfo.properties = static_cast<TestCaseInfo::SpecialProperties>(
        testCaseInfo.properties | parseSpecialTag(lcaseTag));
    testCaseInfo.lcaseTags.push_back(lcaseTag);
  }
  testCaseInfo.tags = std::move(tags);
}

TestCaseInfo::TestCaseInfo(std::string const& _name,
                           std::string const& _className,
                           std::string const& _description,
                           std::vector<std::string> const& _tags,
                           SourceLineInfo const& _lineInfo)
    : name(_name),
      className(_className),
      description(_description),
      lineInfo(_lineInfo),
      properties(None) {
  setTags(*this, _tags);
}

bool TestCaseInfo::isHidden() const { return (properties & IsHidden) != 0; }
bool TestCaseInfo::throws() const { return (properties & Throws) != 0; }
bool TestCaseInfo::okToFail() const {
  return (properties & (ShouldFail | MayFail)) != 0;
}
bool TestCaseInfo::expectedToFail() const {
  return (properties & (ShouldFail)) != 0;
}

std::string TestCaseInfo::tagsAsString() const {
  std::string ret;
  // '[' and ']' per tag
  std::size_t full_size = 2 * tags.size();
  for (const auto& tag : tags) { full_size += tag.size(); }
  ret.reserve(full_size);
  for (const auto& tag : tags) {
    ret.push_back('[');
    ret.append(tag);
    ret.push_back(']');
  }

  return ret;
}

TestCase::TestCase(ITestInvoker* testCase, TestCaseInfo&& info)
    : TestCaseInfo(std::move(info)), test(testCase) {}

TestCase TestCase::withName(std::string const& _newName) const {
  TestCase other(*this);
  other.name = _newName;
  return other;
}

void TestCase::invoke() const { test->invoke(); }

bool TestCase::operator==(TestCase const& other) const {
  return test.get() == other.test.get() && name == other.name &&
         className == other.className;
}

bool TestCase::operator<(TestCase const& other) const {
  return name < other.name;
}

TestCaseInfo const& TestCase::getTestCaseInfo() const { return *this; }

}  // end namespace Catch
// end catch_test_case_info.cpp
// start catch_test_case_registry_impl.cpp

#include <sstream>

namespace Catch {

std::vector<TestCase> sortTests(
    IConfig const& config, std::vector<TestCase> const& unsortedTestCases) {
  std::vector<TestCase> sorted = unsortedTestCases;

  switch (config.runOrder()) {
    case RunTests::InLexicographicalOrder:
      std::sort(sorted.begin(), sorted.end());
      break;
    case RunTests::InRandomOrder:
      seedRng(config);
      std::shuffle(sorted.begin(), sorted.end(), rng());
      break;
    case RunTests::InDeclarationOrder:
      // already in declaration order
      break;
  }
  return sorted;
}
bool matchTest(TestCase const& testCase, TestSpec const& testSpec,
               IConfig const& config) {
  return testSpec.matches(testCase) &&
         (config.allowThrows() || !testCase.throws());
}

void enforceNoDuplicateTestCases(std::vector<TestCase> const& functions) {
  std::set<TestCase> seenFunctions;
  for (auto const& function : functions) {
    auto prev = seenFunctions.insert(function);
    CATCH_ENFORCE(prev.second, "error: TEST_CASE( \""
                                   << function.name << "\" ) already defined.\n"
                                   << "\tFirst seen at "
                                   << prev.first->getTestCaseInfo().lineInfo
                                   << "\n"
                                   << "\tRedefined at "
                                   << function.getTestCaseInfo().lineInfo);
  }
}

std::vector<TestCase> filterTests(std::vector<TestCase> const& testCases,
                                  TestSpec const& testSpec,
                                  IConfig const& config) {
  std::vector<TestCase> filtered;
  filtered.reserve(testCases.size());
  for (auto const& testCase : testCases)
    if (matchTest(testCase, testSpec, config)) filtered.push_back(testCase);
  return filtered;
}
std::vector<TestCase> const& getAllTestCasesSorted(IConfig const& config) {
  return getRegistryHub().getTestCaseRegistry().getAllTestsSorted(config);
}

void TestRegistry::registerTest(TestCase const& testCase) {
  std::string name = testCase.getTestCaseInfo().name;
  if (name.empty()) {
    ReusableStringStream rss;
    rss << "Anonymous test case " << ++m_unnamedCount;
    return registerTest(testCase.withName(rss.str()));
  }
  m_functions.push_back(testCase);
}

std::vector<TestCase> const& TestRegistry::getAllTests() const {
  return m_functions;
}
std::vector<TestCase> const& TestRegistry::getAllTestsSorted(
    IConfig const& config) const {
  if (m_sortedFunctions.empty()) enforceNoDuplicateTestCases(m_functions);

  if (m_currentSortOrder != config.runOrder() || m_sortedFunctions.empty()) {
    m_sortedFunctions = sortTests(config, m_functions);
    m_currentSortOrder = config.runOrder();
  }
  return m_sortedFunctions;
}

///////////////////////////////////////////////////////////////////////////
TestInvokerAsFunction::TestInvokerAsFunction(void (*testAsFunction)()) noexcept
    : m_testAsFunction(testAsFunction) {}

void TestInvokerAsFunction::invoke() const { m_testAsFunction(); }

std::string extractClassName(StringRef const& classOrQualifiedMethodName) {
  std::string className = classOrQualifiedMethodName;
  if (startsWith(className, '&')) {
    std::size_t lastColons = className.rfind("::");
    std::size_t penultimateColons = className.rfind("::", lastColons - 1);
    if (penultimateColons == std::string::npos) penultimateColons = 1;
    className =
        className.substr(penultimateColons, lastColons - penultimateColons);
  }
  return className;
}

}  // end namespace Catch
// end catch_test_case_registry_impl.cpp
// start catch_test_case_tracker.cpp

#include <algorithm>
#include <cassert>
#include <memory>
#include <sstream>
#include <stdexcept>

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#endif

namespace Catch {
namespace TestCaseTracking {

NameAndLocation::NameAndLocation(std::string const& _name,
                                 SourceLineInfo const& _location)
    : name(_name), location(_location) {}

ITracker::~ITracker() = default;

TrackerContext& TrackerContext::instance() {
  static TrackerContext s_instance;
  return s_instance;
}

ITracker& TrackerContext::startRun() {
  m_rootTracker = std::make_shared<SectionTracker>(
      NameAndLocation("{root}", CATCH_INTERNAL_LINEINFO), *this, nullptr);
  m_currentTracker = nullptr;
  m_runState = Executing;
  return *m_rootTracker;
}

void TrackerContext::endRun() {
  m_rootTracker.reset();
  m_currentTracker = nullptr;
  m_runState = NotStarted;
}

void TrackerContext::startCycle() {
  m_currentTracker = m_rootTracker.get();
  m_runState = Executing;
}
void TrackerContext::completeCycle() { m_runState = CompletedCycle; }

bool TrackerContext::completedCycle() const {
  return m_runState == CompletedCycle;
}
ITracker& TrackerContext::currentTracker() { return *m_currentTracker; }
void TrackerContext::setCurrentTracker(ITracker* tracker) {
  m_currentTracker = tracker;
}

TrackerBase::TrackerBase(NameAndLocation const& nameAndLocation,
                         TrackerContext& ctx, ITracker* parent)
    : m_nameAndLocation(nameAndLocation), m_ctx(ctx), m_parent(parent) {}

NameAndLocation const& TrackerBase::nameAndLocation() const {
  return m_nameAndLocation;
}
bool TrackerBase::isComplete() const {
  return m_runState == CompletedSuccessfully || m_runState == Failed;
}
bool TrackerBase::isSuccessfullyCompleted() const {
  return m_runState == CompletedSuccessfully;
}
bool TrackerBase::isOpen() const {
  return m_runState != NotStarted && !isComplete();
}
bool TrackerBase::hasChildren() const { return !m_children.empty(); }

void TrackerBase::addChild(ITrackerPtr const& child) {
  m_children.push_back(child);
}

ITrackerPtr TrackerBase::findChild(NameAndLocation const& nameAndLocation) {
  auto it = std::find_if(m_children.begin(), m_children.end(),
                         [&nameAndLocation](ITrackerPtr const& tracker) {
                           return tracker->nameAndLocation().location ==
                                      nameAndLocation.location &&
                                  tracker->nameAndLocation().name ==
                                      nameAndLocation.name;
                         });
  return (it != m_children.end()) ? *it : nullptr;
}
ITracker& TrackerBase::parent() {
  assert(m_parent);  // Should always be non-null except for root
  return *m_parent;
}

void TrackerBase::openChild() {
  if (m_runState != ExecutingChildren) {
    m_runState = ExecutingChildren;
    if (m_parent) m_parent->openChild();
  }
}

bool TrackerBase::isSectionTracker() const { return false; }
bool TrackerBase::isIndexTracker() const { return false; }

void TrackerBase::open() {
  m_runState = Executing;
  moveToThis();
  if (m_parent) m_parent->openChild();
}

void TrackerBase::close() {
  // Close any still open children (e.g. generators)
  while (&m_ctx.currentTracker() != this) m_ctx.currentTracker().close();

  switch (m_runState) {
    case NeedsAnotherRun:
      break;

    case Executing:
      m_runState = CompletedSuccessfully;
      break;
    case ExecutingChildren:
      if (m_children.empty() || m_children.back()->isComplete())
        m_runState = CompletedSuccessfully;
      break;

    case NotStarted:
    case CompletedSuccessfully:
    case Failed:
      CATCH_INTERNAL_ERROR("Illogical state: " << m_runState);

    default:
      CATCH_INTERNAL_ERROR("Unknown state: " << m_runState);
  }
  moveToParent();
  m_ctx.completeCycle();
}
void TrackerBase::fail() {
  m_runState = Failed;
  if (m_parent) m_parent->markAsNeedingAnotherRun();
  moveToParent();
  m_ctx.completeCycle();
}
void TrackerBase::markAsNeedingAnotherRun() { m_runState = NeedsAnotherRun; }

void TrackerBase::moveToParent() {
  assert(m_parent);
  m_ctx.setCurrentTracker(m_parent);
}
void TrackerBase::moveToThis() { m_ctx.setCurrentTracker(this); }

SectionTracker::SectionTracker(NameAndLocation const& nameAndLocation,
                               TrackerContext& ctx, ITracker* parent)
    : TrackerBase(nameAndLocation, ctx, parent) {
  if (parent) {
    while (!parent->isSectionTracker()) parent = &parent->parent();

    SectionTracker& parentSection = static_cast<SectionTracker&>(*parent);
    addNextFilters(parentSection.m_filters);
  }
}

bool SectionTracker::isSectionTracker() const { return true; }

SectionTracker& SectionTracker::acquire(
    TrackerContext& ctx, NameAndLocation const& nameAndLocation) {
  std::shared_ptr<SectionTracker> section;

  ITracker& currentTracker = ctx.currentTracker();
  if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation)) {
    assert(childTracker);
    assert(childTracker->isSectionTracker());
    section = std::static_pointer_cast<SectionTracker>(childTracker);
  } else {
    section =
        std::make_shared<SectionTracker>(nameAndLocation, ctx, &currentTracker);
    currentTracker.addChild(section);
  }
  if (!ctx.completedCycle()) section->tryOpen();
  return *section;
}

void SectionTracker::tryOpen() {
  if (!isComplete() && (m_filters.empty() || m_filters[0].empty() ||
                        m_filters[0] == m_nameAndLocation.name))
    open();
}

void SectionTracker::addInitialFilters(
    std::vector<std::string> const& filters) {
  if (!filters.empty()) {
    m_filters.push_back("");  // Root - should never be consulted
    m_filters.push_back("");  // Test Case - not a section filter
    m_filters.insert(m_filters.end(), filters.begin(), filters.end());
  }
}
void SectionTracker::addNextFilters(std::vector<std::string> const& filters) {
  if (filters.size() > 1)
    m_filters.insert(m_filters.end(), ++filters.begin(), filters.end());
}

IndexTracker::IndexTracker(NameAndLocation const& nameAndLocation,
                           TrackerContext& ctx, ITracker* parent, int size)
    : TrackerBase(nameAndLocation, ctx, parent), m_size(size) {}

bool IndexTracker::isIndexTracker() const { return true; }

IndexTracker& IndexTracker::acquire(TrackerContext& ctx,
                                    NameAndLocation const& nameAndLocation,
                                    int size) {
  std::shared_ptr<IndexTracker> tracker;

  ITracker& currentTracker = ctx.currentTracker();
  if (ITrackerPtr childTracker = currentTracker.findChild(nameAndLocation)) {
    assert(childTracker);
    assert(childTracker->isIndexTracker());
    tracker = std::static_pointer_cast<IndexTracker>(childTracker);
  } else {
    tracker = std::make_shared<IndexTracker>(nameAndLocation, ctx,
                                             &currentTracker, size);
    currentTracker.addChild(tracker);
  }

  if (!ctx.completedCycle() && !tracker->isComplete()) {
    if (tracker->m_runState != ExecutingChildren &&
        tracker->m_runState != NeedsAnotherRun)
      tracker->moveNext();
    tracker->open();
  }

  return *tracker;
}

int IndexTracker::index() const { return m_index; }

void IndexTracker::moveNext() {
  m_index++;
  m_children.clear();
}

void IndexTracker::close() {
  TrackerBase::close();
  if (m_runState == CompletedSuccessfully && m_index < m_size - 1)
    m_runState = Executing;
}

}  // namespace TestCaseTracking

using TestCaseTracking::IndexTracker;
using TestCaseTracking::ITracker;
using TestCaseTracking::SectionTracker;
using TestCaseTracking::TrackerContext;

}  // namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif
// end catch_test_case_tracker.cpp
// start catch_test_registry.cpp

namespace Catch {

auto makeTestInvoker(void (*testAsFunction)()) noexcept -> ITestInvoker* {
  return new (std::nothrow) TestInvokerAsFunction(testAsFunction);
}

NameAndTags::NameAndTags(StringRef const& name_,
                         StringRef const& tags_) noexcept
    : name(name_), tags(tags_) {}

AutoReg::AutoReg(ITestInvoker* invoker, SourceLineInfo const& lineInfo,
                 StringRef const& classOrMethod,
                 NameAndTags const& nameAndTags) noexcept {
  CATCH_TRY {
    getMutableRegistryHub().registerTest(makeTestCase(
        invoker, extractClassName(classOrMethod), nameAndTags, lineInfo));
  }
  CATCH_CATCH_ALL {
    // Do not throw when constructing global objects, instead register the
    // exception to be processed later
    getMutableRegistryHub().registerStartupException();
  }
}

AutoReg::~AutoReg() = default;
}  // namespace Catch
// end catch_test_registry.cpp
// start catch_test_spec.cpp

#include <algorithm>
#include <memory>
#include <string>
#include <vector>

namespace Catch {

TestSpec::Pattern::~Pattern() = default;
TestSpec::NamePattern::~NamePattern() = default;
TestSpec::TagPattern::~TagPattern() = default;
TestSpec::ExcludedPattern::~ExcludedPattern() = default;

TestSpec::NamePattern::NamePattern(std::string const& name)
    : m_wildcardPattern(toLower(name), CaseSensitive::No) {}
bool TestSpec::NamePattern::matches(TestCaseInfo const& testCase) const {
  return m_wildcardPattern.matches(toLower(testCase.name));
}

TestSpec::TagPattern::TagPattern(std::string const& tag)
    : m_tag(toLower(tag)) {}
bool TestSpec::TagPattern::matches(TestCaseInfo const& testCase) const {
  return std::find(begin(testCase.lcaseTags), end(testCase.lcaseTags), m_tag) !=
         end(testCase.lcaseTags);
}

TestSpec::ExcludedPattern::ExcludedPattern(PatternPtr const& underlyingPattern)
    : m_underlyingPattern(underlyingPattern) {}
bool TestSpec::ExcludedPattern::matches(TestCaseInfo const& testCase) const {
  return !m_underlyingPattern->matches(testCase);
}

bool TestSpec::Filter::matches(TestCaseInfo const& testCase) const {
  // All patterns in a filter must match for the filter to be a match
  for (auto const& pattern : m_patterns) {
    if (!pattern->matches(testCase)) return false;
  }
  return true;
}

bool TestSpec::hasFilters() const { return !m_filters.empty(); }
bool TestSpec::matches(TestCaseInfo const& testCase) const {
  // A TestSpec matches if any filter matches
  for (auto const& filter : m_filters)
    if (filter.matches(testCase)) return true;
  return false;
}
}  // namespace Catch
// end catch_test_spec.cpp
// start catch_test_spec_parser.cpp

namespace Catch {

TestSpecParser::TestSpecParser(ITagAliasRegistry const& tagAliases)
    : m_tagAliases(&tagAliases) {}

TestSpecParser& TestSpecParser::parse(std::string const& arg) {
  m_mode = None;
  m_exclusion = false;
  m_start = std::string::npos;
  m_arg = m_tagAliases->expandAliases(arg);
  m_escapeChars.clear();
  for (m_pos = 0; m_pos < m_arg.size(); ++m_pos) visitChar(m_arg[m_pos]);
  if (m_mode == Name) addPattern<TestSpec::NamePattern>();
  return *this;
}
TestSpec TestSpecParser::testSpec() {
  addFilter();
  return m_testSpec;
}

void TestSpecParser::visitChar(char c) {
  if (m_mode == None) {
    switch (c) {
      case ' ':
        return;
      case '~':
        m_exclusion = true;
        return;
      case '[':
        return startNewMode(Tag, ++m_pos);
      case '"':
        return startNewMode(QuotedName, ++m_pos);
      case '\\':
        return escape();
      default:
        startNewMode(Name, m_pos);
        break;
    }
  }
  if (m_mode == Name) {
    if (c == ',') {
      addPattern<TestSpec::NamePattern>();
      addFilter();
    } else if (c == '[') {
      if (subString() == "exclude:")
        m_exclusion = true;
      else
        addPattern<TestSpec::NamePattern>();
      startNewMode(Tag, ++m_pos);
    } else if (c == '\\')
      escape();
  } else if (m_mode == EscapedName)
    m_mode = Name;
  else if (m_mode == QuotedName && c == '"')
    addPattern<TestSpec::NamePattern>();
  else if (m_mode == Tag && c == ']')
    addPattern<TestSpec::TagPattern>();
}
void TestSpecParser::startNewMode(Mode mode, std::size_t start) {
  m_mode = mode;
  m_start = start;
}
void TestSpecParser::escape() {
  if (m_mode == None) m_start = m_pos;
  m_mode = EscapedName;
  m_escapeChars.push_back(m_pos);
}
std::string TestSpecParser::subString() const {
  return m_arg.substr(m_start, m_pos - m_start);
}

void TestSpecParser::addFilter() {
  if (!m_currentFilter.m_patterns.empty()) {
    m_testSpec.m_filters.push_back(m_currentFilter);
    m_currentFilter = TestSpec::Filter();
  }
}

TestSpec parseTestSpec(std::string const& arg) {
  return TestSpecParser(ITagAliasRegistry::get()).parse(arg).testSpec();
}

}  // namespace Catch
// end catch_test_spec_parser.cpp
// start catch_timer.cpp

#include <chrono>

static const uint64_t nanosecondsInSecond = 1000000000;

namespace Catch {

auto getCurrentNanosecondsSinceEpoch() -> uint64_t {
  return std::chrono::duration_cast<std::chrono::nanoseconds>(
             std::chrono::high_resolution_clock::now().time_since_epoch())
      .count();
}

namespace {
auto estimateClockResolution() -> uint64_t {
  uint64_t sum = 0;
  static const uint64_t iterations = 1000000;

  auto startTime = getCurrentNanosecondsSinceEpoch();

  for (std::size_t i = 0; i < iterations; ++i) {
    uint64_t ticks;
    uint64_t baseTicks = getCurrentNanosecondsSinceEpoch();
    do {
      ticks = getCurrentNanosecondsSinceEpoch();
    } while (ticks == baseTicks);

    auto delta = ticks - baseTicks;
    sum += delta;

    // If we have been calibrating for over 3 seconds -- the clock
    // is terrible and we should move on.
    // TBD: How to signal that the measured resolution is probably wrong?
    if (ticks > startTime + 3 * nanosecondsInSecond) { return sum / i; }
  }

  // We're just taking the mean, here. To do better we could take the std. dev
  // and exclude outliers
  // - and potentially do more iterations if there's a high variance.
  return sum / iterations;
}
}  // namespace
auto getEstimatedClockResolution() -> uint64_t {
  static auto s_resolution = estimateClockResolution();
  return s_resolution;
}

void Timer::start() { m_nanoseconds = getCurrentNanosecondsSinceEpoch(); }
auto Timer::getElapsedNanoseconds() const -> uint64_t {
  return getCurrentNanosecondsSinceEpoch() - m_nanoseconds;
}
auto Timer::getElapsedMicroseconds() const -> uint64_t {
  return getElapsedNanoseconds() / 1000;
}
auto Timer::getElapsedMilliseconds() const -> unsigned int {
  return static_cast<unsigned int>(getElapsedMicroseconds() / 1000);
}
auto Timer::getElapsedSeconds() const -> double {
  return getElapsedMicroseconds() / 1000000.0;
}

}  // namespace Catch
// end catch_timer.cpp
// start catch_tostring.cpp

#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wexit-time-destructors"
#pragma clang diagnostic ignored "-Wglobal-constructors"
#endif

// Enable specific decls locally
#if !defined(CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER)
#define CATCH_CONFIG_ENABLE_CHRONO_STRINGMAKER
#endif

#include <cmath>
#include <iomanip>

namespace Catch {

namespace Detail {

const std::string unprintableString = "{?}";

namespace {
const int hexThreshold = 255;

struct Endianness {
  enum Arch { Big, Little };

  static Arch which() {
    union _ {
      int asInt;
      char asChar[sizeof(int)];
    } u;

    u.asInt = 1;
    return (u.asChar[sizeof(int) - 1] == 1) ? Big : Little;
  }
};
}  // namespace

std::string rawMemoryToString(const void* object, std::size_t size) {
  // Reverse order for little endian architectures
  int i = 0, end = static_cast<int>(size), inc = 1;
  if (Endianness::which() == Endianness::Little) {
    i = end - 1;
    end = inc = -1;
  }

  unsigned char const* bytes = static_cast<unsigned char const*>(object);
  ReusableStringStream rss;
  rss << "0x" << std::setfill('0') << std::hex;
  for (; i != end; i += inc)
    rss << std::setw(2) << static_cast<unsigned>(bytes[i]);
  return rss.str();
}
}  // namespace Detail

template <typename T>
std::string fpToString(T value, int precision) {
  if (Catch::isnan(value)) { return "nan"; }

  ReusableStringStream rss;
  rss << std::setprecision(precision) << std::fixed << value;
  std::string d = rss.str();
  std::size_t i = d.find_last_not_of('0');
  if (i != std::string::npos && i != d.size() - 1) {
    if (d[i] == '.') i++;
    d = d.substr(0, i + 1);
  }
  return d;
}

//// ======================================================= ////
//
//   Out-of-line defs for full specialization of StringMaker
//
//// ======================================================= ////

std::string StringMaker<std::string>::convert(const std::string& str) {
  if (!getCurrentContext().getConfig()->showInvisibles()) {
    return '"' + str + '"';
  }

  std::string s("\"");
  for (char c : str) {
    switch (c) {
      case '\n':
        s.append("\\n");
        break;
      case '\t':
        s.append("\\t");
        break;
      default:
        s.push_back(c);
        break;
    }
  }
  s.append("\"");
  return s;
}

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
std::string StringMaker<std::string_view>::convert(std::string_view str) {
  return ::Catch::Detail::stringify(std::string{str});
}
#endif

std::string StringMaker<char const*>::convert(char const* str) {
  if (str) {
    return ::Catch::Detail::stringify(std::string{str});
  } else {
    return {"{null string}"};
  }
}
std::string StringMaker<char*>::convert(char* str) {
  if (str) {
    return ::Catch::Detail::stringify(std::string{str});
  } else {
    return {"{null string}"};
  }
}

#ifdef CATCH_CONFIG_WCHAR
std::string StringMaker<std::wstring>::convert(const std::wstring& wstr) {
  std::string s;
  s.reserve(wstr.size());
  for (auto c : wstr) { s += (c <= 0xff) ? static_cast<char>(c) : '?'; }
  return ::Catch::Detail::stringify(s);
}

#ifdef CATCH_CONFIG_CPP17_STRING_VIEW
std::string StringMaker<std::wstring_view>::convert(std::wstring_view str) {
  return StringMaker<std::wstring>::convert(std::wstring(str));
}
#endif

std::string StringMaker<wchar_t const*>::convert(wchar_t const* str) {
  if (str) {
    return ::Catch::Detail::stringify(std::wstring{str});
  } else {
    return {"{null string}"};
  }
}
std::string StringMaker<wchar_t*>::convert(wchar_t* str) {
  if (str) {
    return ::Catch::Detail::stringify(std::wstring{str});
  } else {
    return {"{null string}"};
  }
}
#endif

std::string StringMaker<int>::convert(int value) {
  return ::Catch::Detail::stringify(static_cast<long long>(value));
}
std::string StringMaker<long>::convert(long value) {
  return ::Catch::Detail::stringify(static_cast<long long>(value));
}
std::string StringMaker<long long>::convert(long long value) {
  ReusableStringStream rss;
  rss << value;
  if (value > Detail::hexThreshold) {
    rss << " (0x" << std::hex << value << ')';
  }
  return rss.str();
}

std::string StringMaker<unsigned int>::convert(unsigned int value) {
  return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
}
std::string StringMaker<unsigned long>::convert(unsigned long value) {
  return ::Catch::Detail::stringify(static_cast<unsigned long long>(value));
}
std::string StringMaker<unsigned long long>::convert(unsigned long long value) {
  ReusableStringStream rss;
  rss << value;
  if (value > Detail::hexThreshold) {
    rss << " (0x" << std::hex << value << ')';
  }
  return rss.str();
}

std::string StringMaker<bool>::convert(bool b) { return b ? "true" : "false"; }

std::string StringMaker<signed char>::convert(signed char value) {
  if (value == '\r') {
    return "'\\r'";
  } else if (value == '\f') {
    return "'\\f'";
  } else if (value == '\n') {
    return "'\\n'";
  } else if (value == '\t') {
    return "'\\t'";
  } else if ('\0' <= value && value < ' ') {
    return ::Catch::Detail::stringify(static_cast<unsigned int>(value));
  } else {
    char chstr[] = "' '";
    chstr[1] = value;
    return chstr;
  }
}
std::string StringMaker<char>::convert(char c) {
  return ::Catch::Detail::stringify(static_cast<signed char>(c));
}
std::string StringMaker<unsigned char>::convert(unsigned char c) {
  return ::Catch::Detail::stringify(static_cast<char>(c));
}

std::string StringMaker<std::nullptr_t>::convert(std::nullptr_t) {
  return "nullptr";
}

std::string StringMaker<float>::convert(float value) {
  return fpToString(value, 5) + 'f';
}
std::string StringMaker<double>::convert(double value) {
  return fpToString(value, 10);
}

std::string ratio_string<std::atto>::symbol() { return "a"; }
std::string ratio_string<std::femto>::symbol() { return "f"; }
std::string ratio_string<std::pico>::symbol() { return "p"; }
std::string ratio_string<std::nano>::symbol() { return "n"; }
std::string ratio_string<std::micro>::symbol() { return "u"; }
std::string ratio_string<std::milli>::symbol() { return "m"; }

}  // end namespace Catch

#if defined(__clang__)
#pragma clang diagnostic pop
#endif

// end catch_tostring.cpp
// start catch_totals.cpp

namespace Catch {

Counts Counts::operator-(Counts const& other) const {
  Counts diff;
  diff.passed = passed - other.passed;
  diff.failed = failed - other.failed;
  diff.failedButOk = failedButOk - other.failedButOk;
  return diff;
}

Counts& Counts::operator+=(Counts const& other) {
  passed += other.passed;
  failed += other.failed;
  failedButOk += other.failedButOk;
  return *this;
}

std::size_t Counts::total() const { return passed + failed + failedButOk; }
bool Counts::allPassed() const { return failed == 0 && failedButOk == 0; }
bool Counts::allOk() const { return failed == 0; }

Totals Totals::operator-(Totals const& other) const {
  Totals diff;
  diff.assertions = assertions - other.assertions;
  diff.testCases = testCases - other.testCases;
  return diff;
}

Totals& Totals::operator+=(Totals const& other) {
  assertions += other.assertions;
  testCases += other.testCases;
  return *this;
}

Totals Totals::delta(Totals const& prevTotals) const {
  Totals diff = *this - prevTotals;
  if (diff.assertions.failed > 0)
    ++diff.testCases.failed;
  else if (diff.assertions.failedButOk > 0)
    ++diff.testCases.failedButOk;
  else
    ++diff.testCases.passed;
  return diff;
}

}  // namespace Catch
// end catch_totals.cpp
// start catch_uncaught_exceptions.cpp

#include <exception>

namespace Catch {
bool uncaught_exceptions() {
#if defined(CATCH_CONFIG_CPP17_UNCAUGHT_EXCEPTIONS)
  return std::uncaught_exceptions() > 0;
#else
  return std::uncaught_exception();
#endif
}
}  // end namespace Catch
// end catch_uncaught_exceptions.cpp
// start catch_version.cpp

#include <ostream>

namespace Catch {

Version::Version(unsigned int _majorVersion, unsigned int _minorVersion,
                 unsigned int _patchNumber, char const* const _branchName,
                 unsigned int _buildNumber)
    : majorVersion(_majorVersion),
      minorVersion(_minorVersion),
      patchNumber(_patchNumber),
      branchName(_branchName),
      buildNumber(_buildNumber) {}

std::ostream& operator<<(std::ostream& os, Version const& version) {
  os << version.majorVersion << '.' << version.minorVersion << '.'
     << version.patchNumber;
  // branchName is never null -> 0th char is \0 if it is empty
  if (version.branchName[0]) {
    os << '-' << version.branchName << '.' << version.buildNumber;
  }
  return os;
}

Version const& libraryVersion() {
  static Version version(2, 5, 0, "", 0);
  return version;
}

}  // namespace Catch
// end catch_version.cpp
// start catch_wildcard_pattern.cpp

#include <sstream>

namespace Catch {

WildcardPattern::WildcardPattern(std::string const& pattern,
                                 CaseSensitive::Choice caseSensitivity)
    : m_caseSensitivity(caseSensitivity), m_pattern(adjustCase(pattern)) {
  if (startsWith(m_pattern, '*')) {
    m_pattern = m_pattern.substr(1);
    m_wildcard = WildcardAtStart;
  }
  if (endsWith(m_pattern, '*')) {
    m_pattern = m_pattern.substr(0, m_pattern.size() - 1);
    m_wildcard = static_cast<WildcardPosition>(m_wildcard | WildcardAtEnd);
  }
}

bool WildcardPattern::matches(std::string const& str) const {
  switch (m_wildcard) {
    case NoWildcard:
      return m_pattern == adjustCase(str);
    case WildcardAtStart:
      return endsWith(adjustCase(str), m_pattern);
    case WildcardAtEnd:
      return startsWith(adjustCase(str), m_pattern);
    case WildcardAtBothEnds:
      return contains(adjustCase(str), m_pattern);
    default:
      CATCH_INTERNAL_ERROR("Unknown enum");
  }
}

std::string WildcardPattern::adjustCase(std::string const& str) const {
  return m_caseSensitivity == CaseSensitive::No ? toLower(str) : str;
}
}  // namespace Catch
// end catch_wildcard_pattern.cpp
// start catch_xmlwriter.cpp

#include <iomanip>

using uchar = unsigned char;

namespace Catch {

namespace {

size_t trailingBytes(unsigned char c) {
  if ((c & 0xE0) == 0xC0) { return 2; }
  if ((c & 0xF0) == 0xE0) { return 3; }
  if ((c & 0xF8) == 0xF0) { return 4; }
  CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
}

uint32_t headerValue(unsigned char c) {
  if ((c & 0xE0) == 0xC0) { return c & 0x1F; }
  if ((c & 0xF0) == 0xE0) { return c & 0x0F; }
  if ((c & 0xF8) == 0xF0) { return c & 0x07; }
  CATCH_INTERNAL_ERROR("Invalid multibyte utf-8 start byte encountered");
}

void hexEscapeChar(std::ostream& os, unsigned char c) {
  os << "\\x" << std::uppercase << std::hex << std::setfill('0') << std::setw(2)
     << static_cast<int>(c);
}

}  // anonymous namespace

XmlEncode::XmlEncode(std::string const& str, ForWhat forWhat)
    : m_str(str), m_forWhat(forWhat) {}

void XmlEncode::encodeTo(std::ostream& os) const {
  // Apostrophe escaping not necessary if we always use " to write attributes
  // (see: http://www.w3.org/TR/xml/#syntax)

  for (std::size_t idx = 0; idx < m_str.size(); ++idx) {
    uchar c = m_str[idx];
    switch (c) {
      case '<':
        os << "&lt;";
        break;
      case '&':
        os << "&amp;";
        break;

      case '>':
        // See: http://www.w3.org/TR/xml/#syntax
        if (idx > 2 && m_str[idx - 1] == ']' && m_str[idx - 2] == ']')
          os << "&gt;";
        else
          os << c;
        break;

      case '\"':
        if (m_forWhat == ForAttributes)
          os << "&quot;";
        else
          os << c;
        break;

      default:
        // Check for control characters and invalid utf-8

        // Escape control characters in standard ascii
        // see
        // http://stackoverflow.com/questions/404107/why-are-control-characters-illegal-in-xml-1-0
        if (c < 0x09 || (c > 0x0D && c < 0x20) || c == 0x7F) {
          hexEscapeChar(os, c);
          break;
        }

        // Plain ASCII: Write it to stream
        if (c < 0x7F) {
          os << c;
          break;
        }

        // UTF-8 territory
        // Check if the encoding is valid and if it is not, hex escape bytes.
        // Important: We do not check the exact decoded values for validity,
        // only the encoding format First check that this bytes is a valid lead
        // byte: This means that it is not encoded as 1111 1XXX Or as 10XX XXXX
        if (c < 0xC0 || c >= 0xF8) {
          hexEscapeChar(os, c);
          break;
        }

        auto encBytes = trailingBytes(c);
        // Are there enough bytes left to avoid accessing out-of-bounds memory?
        if (idx + encBytes - 1 >= m_str.size()) {
          hexEscapeChar(os, c);
          break;
        }
        // The header is valid, check data
        // The next encBytes bytes must together be a valid utf-8
        // This means: bitpattern 10XX XXXX and the extracted value is sane
        // (ish)
        bool valid = true;
        uint32_t value = headerValue(c);
        for (std::size_t n = 1; n < encBytes; ++n) {
          uchar nc = m_str[idx + n];
          valid &= ((nc & 0xC0) == 0x80);
          value = (value << 6) | (nc & 0x3F);
        }

        if (
            // Wrong bit pattern of following bytes
            (!valid) ||
            // Overlong encodings
            (value < 0x80) ||
            (0x80 <= value && value < 0x800 && encBytes > 2) ||
            (0x800 < value && value < 0x10000 && encBytes > 3) ||
            // Encoded value out of range
            (value >= 0x110000)) {
          hexEscapeChar(os, c);
          break;
        }

        // If we got here, this is in fact a valid(ish) utf-8 sequence
        for (std::size_t n = 0; n < encBytes; ++n) { os << m_str[idx + n]; }
        idx += encBytes - 1;
        break;
    }
  }
}

std::ostream& operator<<(std::ostream& os, XmlEncode const& xmlEncode) {
  xmlEncode.encodeTo(os);
  return os;
}

XmlWriter::ScopedElement::ScopedElement(XmlWriter* writer) : m_writer(writer) {}

XmlWriter::ScopedElement::ScopedElement(ScopedElement&& other) noexcept
    : m_writer(other.m_writer) {
  other.m_writer = nullptr;
}
XmlWriter::ScopedElement& XmlWriter::ScopedElement::operator=(
    ScopedElement&& other) noexcept {
  if (m_writer) { m_writer->endElement(); }
  m_writer = other.m_writer;
  other.m_writer = nullptr;
  return *this;
}

XmlWriter::ScopedElement::~ScopedElement() {
  if (m_writer) m_writer->endElement();
}

XmlWriter::ScopedElement& XmlWriter::ScopedElement::writeText(
    std::string const& text, bool indent) {
  m_writer->writeText(text, indent);
  return *this;
}

XmlWriter::XmlWriter(std::ostream& os) : m_os(os) { writeDeclaration(); }

XmlWriter::~XmlWriter() {
  while (!m_tags.empty()) endElement();
}

XmlWriter& XmlWriter::startElement(std::string const& name) {
  ensureTagClosed();
  newlineIfNecessary();
  m_os << m_indent << '<' << name;
  m_tags.push_back(name);
  m_indent += "  ";
  m_tagIsOpen = true;
  return *this;
}

XmlWriter::ScopedElement XmlWriter::scopedElement(std::string const& name) {
  ScopedElement scoped(this);
  startElement(name);
  return scoped;
}

XmlWriter& XmlWriter::endElement() {
  newlineIfNecessary();
  m_indent = m_indent.substr(0, m_indent.size() - 2);
  if (m_tagIsOpen) {
    m_os << "/>";
    m_tagIsOpen = false;
  } else {
    m_os << m_indent << "</" << m_tags.back() << ">";
  }
  m_os << std::endl;
  m_tags.pop_back();
  return *this;
}

XmlWriter& XmlWriter::writeAttribute(std::string const& name,
                                     std::string const& attribute) {
  if (!name.empty() && !attribute.empty())
    m_os << ' ' << name << "=\""
         << XmlEncode(attribute, XmlEncode::ForAttributes) << '"';
  return *this;
}

XmlWriter& XmlWriter::writeAttribute(std::string const& name, bool attribute) {
  m_os << ' ' << name << "=\"" << (attribute ? "true" : "false") << '"';
  return *this;
}

XmlWriter& XmlWriter::writeText(std::string const& text, bool indent) {
  if (!text.empty()) {
    bool tagWasOpen = m_tagIsOpen;
    ensureTagClosed();
    if (tagWasOpen && indent) m_os << m_indent;
    m_os << XmlEncode(text);
    m_needsNewline = true;
  }
  return *this;
}

XmlWriter& XmlWriter::writeComment(std::string const& text) {
  ensureTagClosed();
  m_os << m_indent << "<!--" << text << "-->";
  m_needsNewline = true;
  return *this;
}

void XmlWriter::writeStylesheetRef(std::string const& url) {
  m_os << "<?xml-stylesheet type=\"text/xsl\" href=\"" << url << "\"?>\n";
}

XmlWriter& XmlWriter::writeBlankLine() {
  ensureTagClosed();
  m_os << '\n';
  return *this;
}

void XmlWriter::ensureTagClosed() {
  if (m_tagIsOpen) {
    m_os << ">" << std::endl;
    m_tagIsOpen = false;
  }
}

void XmlWriter::writeDeclaration() {
  m_os << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n";
}

void XmlWriter::newlineIfNecessary() {
  if (m_needsNewline) {
    m_os << std::endl;
    m_needsNewline = false;
  }
}
}  // namespace Catch
// end catch_xmlwriter.cpp
// start catch_reporter_bases.cpp

#include <cassert>
#include <cfloat>
#include <cstdio>
#include <cstring>
#include <memory>

namespace Catch {
void prepareExpandedExpression(AssertionResult& result) {
  result.getExpandedExpression();
}

// Because formatting using c++ streams is stateful, drop down to C is required
// Alternatively we could use stringstream, but its performance is... not good.
std::string getFormattedDuration(double duration) {
  // Max exponent + 1 is required to represent the whole part
  // + 1 for decimal point
  // + 3 for the 3 decimal places
  // + 1 for null terminator
  const std::size_t maxDoubleSize = DBL_MAX_10_EXP + 1 + 1 + 3 + 1;
  char buffer[maxDoubleSize];

  // Save previous errno, to prevent sprintf from overwriting it
  ErrnoGuard guard;
#ifdef _MSC_VER
  sprintf_s(buffer, "%.3f", duration);
#else
  sprintf(buffer, "%.3f", duration);
#endif
  return std::string(buffer);
}

TestEventListenerBase::TestEventListenerBase(ReporterConfig const& _config)
    : StreamingReporterBase(_config) {}

std::set<Verbosity> TestEventListenerBase::getSupportedVerbosities() {
  return {Verbosity::Quiet, Verbosity::Normal, Verbosity::High};
}

void TestEventListenerBase::assertionStarting(AssertionInfo const&) {}

bool TestEventListenerBase::assertionEnded(AssertionStats const&) {
  return false;
}

}  // end namespace Catch
// end catch_reporter_bases.cpp
// start catch_reporter_compact.cpp

namespace {

#ifdef CATCH_PLATFORM_MAC
const char* failedString() { return "FAILED"; }
const char* passedString() { return "PASSED"; }
#else
const char* failedString() { return "failed"; }
const char* passedString() { return "passed"; }
#endif

// Colour::LightGrey
Catch::Colour::Code dimColour() { return Catch::Colour::FileName; }

std::string bothOrAll(std::size_t count) {
  return count == 1 ? std::string() : count == 2 ? "both " : "all ";
}

}  // namespace

namespace Catch {
namespace {
// Colour, message variants:
// - white: No tests ran.
// -   red: Failed [both/all] N test cases, failed [both/all] M assertions.
// - white: Passed [both/all] N test cases (no assertions).
// -   red: Failed N tests cases, failed M assertions.
// - green: Passed [both/all] N tests cases with M assertions.
void printTotals(std::ostream& out, const Totals& totals) {
  if (totals.testCases.total() == 0) {
    out << "No tests ran.";
  } else if (totals.testCases.failed == totals.testCases.total()) {
    Colour colour(Colour::ResultError);
    const std::string qualify_assertions_failed =
        totals.assertions.failed == totals.assertions.total()
            ? bothOrAll(totals.assertions.failed)
            : std::string();
    out << "Failed " << bothOrAll(totals.testCases.failed)
        << pluralise(totals.testCases.failed, "test case")
        << ", "
           "failed "
        << qualify_assertions_failed
        << pluralise(totals.assertions.failed, "assertion") << '.';
  } else if (totals.assertions.total() == 0) {
    out << "Passed " << bothOrAll(totals.testCases.total())
        << pluralise(totals.testCases.total(), "test case")
        << " (no assertions).";
  } else if (totals.assertions.failed) {
    Colour colour(Colour::ResultError);
    out << "Failed " << pluralise(totals.testCases.failed, "test case")
        << ", "
           "failed "
        << pluralise(totals.assertions.failed, "assertion") << '.';
  } else {
    Colour colour(Colour::ResultSuccess);
    out << "Passed " << bothOrAll(totals.testCases.passed)
        << pluralise(totals.testCases.passed, "test case") << " with "
        << pluralise(totals.assertions.passed, "assertion") << '.';
  }
}

// Implementation of CompactReporter formatting
class AssertionPrinter {
 public:
  AssertionPrinter& operator=(AssertionPrinter const&) = delete;
  AssertionPrinter(AssertionPrinter const&) = delete;
  AssertionPrinter(std::ostream& _stream, AssertionStats const& _stats,
                   bool _printInfoMessages)
      : stream(_stream),
        result(_stats.assertionResult),
        messages(_stats.infoMessages),
        itMessage(_stats.infoMessages.begin()),
        printInfoMessages(_printInfoMessages) {}

  void print() {
    printSourceInfo();

    itMessage = messages.begin();

    switch (result.getResultType()) {
      case ResultWas::Ok:
        printResultType(Colour::ResultSuccess, passedString());
        printOriginalExpression();
        printReconstructedExpression();
        if (!result.hasExpression())
          printRemainingMessages(Colour::None);
        else
          printRemainingMessages();
        break;
      case ResultWas::ExpressionFailed:
        if (result.isOk())
          printResultType(Colour::ResultSuccess,
                          failedString() + std::string(" - but was ok"));
        else
          printResultType(Colour::Error, failedString());
        printOriginalExpression();
        printReconstructedExpression();
        printRemainingMessages();
        break;
      case ResultWas::ThrewException:
        printResultType(Colour::Error, failedString());
        printIssue("unexpected exception with message:");
        printMessage();
        printExpressionWas();
        printRemainingMessages();
        break;
      case ResultWas::FatalErrorCondition:
        printResultType(Colour::Error, failedString());
        printIssue("fatal error condition with message:");
        printMessage();
        printExpressionWas();
        printRemainingMessages();
        break;
      case ResultWas::DidntThrowException:
        printResultType(Colour::Error, failedString());
        printIssue("expected exception, got none");
        printExpressionWas();
        printRemainingMessages();
        break;
      case ResultWas::Info:
        printResultType(Colour::None, "info");
        printMessage();
        printRemainingMessages();
        break;
      case ResultWas::Warning:
        printResultType(Colour::None, "warning");
        printMessage();
        printRemainingMessages();
        break;
      case ResultWas::ExplicitFailure:
        printResultType(Colour::Error, failedString());
        printIssue("explicitly");
        printRemainingMessages(Colour::None);
        break;
        // These cases are here to prevent compiler warnings
      case ResultWas::Unknown:
      case ResultWas::FailureBit:
      case ResultWas::Exception:
        printResultType(Colour::Error, "** internal error **");
        break;
    }
  }

 private:
  void printSourceInfo() const {
    Colour colourGuard(Colour::FileName);
    stream << result.getSourceInfo() << ':';
  }

  void printResultType(Colour::Code colour,
                       std::string const& passOrFail) const {
    if (!passOrFail.empty()) {
      {
        Colour colourGuard(colour);
        stream << ' ' << passOrFail;
      }
      stream << ':';
    }
  }

  void printIssue(std::string const& issue) const { stream << ' ' << issue; }

  void printExpressionWas() {
    if (result.hasExpression()) {
      stream << ';';
      {
        Colour colour(dimColour());
        stream << " expression was:";
      }
      printOriginalExpression();
    }
  }

  void printOriginalExpression() const {
    if (result.hasExpression()) { stream << ' ' << result.getExpression(); }
  }

  void printReconstructedExpression() const {
    if (result.hasExpandedExpression()) {
      {
        Colour colour(dimColour());
        stream << " for: ";
      }
      stream << result.getExpandedExpression();
    }
  }

  void printMessage() {
    if (itMessage != messages.end()) {
      stream << " '" << itMessage->message << '\'';
      ++itMessage;
    }
  }

  void printRemainingMessages(Colour::Code colour = dimColour()) {
    if (itMessage == messages.end()) return;

    // using messages.end() directly yields (or auto) compilation error:
    std::vector<MessageInfo>::const_iterator itEnd = messages.end();
    const std::size_t N =
        static_cast<std::size_t>(std::distance(itMessage, itEnd));

    {
      Colour colourGuard(colour);
      stream << " with " << pluralise(N, "message") << ':';
    }

    for (; itMessage != itEnd;) {
      // If this assertion is a warning ignore any INFO messages
      if (printInfoMessages || itMessage->type != ResultWas::Info) {
        stream << " '" << itMessage->message << '\'';
        if (++itMessage != itEnd) {
          Colour colourGuard(dimColour());
          stream << " and";
        }
      }
    }
  }

 private:
  std::ostream& stream;
  AssertionResult const& result;
  std::vector<MessageInfo> messages;
  std::vector<MessageInfo>::const_iterator itMessage;
  bool printInfoMessages;
};

}  // namespace

std::string CompactReporter::getDescription() {
  return "Reports test results on a single line, suitable for IDEs";
}

ReporterPreferences CompactReporter::getPreferences() const {
  return m_reporterPrefs;
}

void CompactReporter::noMatchingTestCases(std::string const& spec) {
  stream << "No test cases matched '" << spec << '\'' << std::endl;
}

void CompactReporter::assertionStarting(AssertionInfo const&) {}

bool CompactReporter::assertionEnded(AssertionStats const& _assertionStats) {
  AssertionResult const& result = _assertionStats.assertionResult;

  bool printInfoMessages = true;

  // Drop out if result was successful and we're not printing those
  if (!m_config->includeSuccessfulResults() && result.isOk()) {
    if (result.getResultType() != ResultWas::Warning) return false;
    printInfoMessages = false;
  }

  AssertionPrinter printer(stream, _assertionStats, printInfoMessages);
  printer.print();

  stream << std::endl;
  return true;
}

void CompactReporter::sectionEnded(SectionStats const& _sectionStats) {
  if (m_config->showDurations() == ShowDurations::Always) {
    stream << getFormattedDuration(_sectionStats.durationInSeconds)
           << " s: " << _sectionStats.sectionInfo.name << std::endl;
  }
}

void CompactReporter::testRunEnded(TestRunStats const& _testRunStats) {
  printTotals(stream, _testRunStats.totals);
  stream << '\n' << std::endl;
  StreamingReporterBase::testRunEnded(_testRunStats);
}

CompactReporter::~CompactReporter() {}

CATCH_REGISTER_REPORTER("compact", CompactReporter)

}  // end namespace Catch
// end catch_reporter_compact.cpp
// start catch_reporter_console.cpp

#include <cfloat>
#include <cstdio>

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4061)  // Not all labels are EXPLICITLY handled in
                                 // switch Note that 4062 (not all labels are
                                 // handled and default is missing) is enabled
#endif

namespace Catch {

namespace {

// Formatter impl for ConsoleReporter
class ConsoleAssertionPrinter {
 public:
  ConsoleAssertionPrinter& operator=(ConsoleAssertionPrinter const&) = delete;
  ConsoleAssertionPrinter(ConsoleAssertionPrinter const&) = delete;
  ConsoleAssertionPrinter(std::ostream& _stream, AssertionStats const& _stats,
                          bool _printInfoMessages)
      : stream(_stream),
        stats(_stats),
        result(_stats.assertionResult),
        colour(Colour::None),
        message(result.getMessage()),
        messages(_stats.infoMessages),
        printInfoMessages(_printInfoMessages) {
    switch (result.getResultType()) {
      case ResultWas::Ok:
        colour = Colour::Success;
        passOrFail = "PASSED";
        // if( result.hasMessage() )
        if (_stats.infoMessages.size() == 1) messageLabel = "with message";
        if (_stats.infoMessages.size() > 1) messageLabel = "with messages";
        break;
      case ResultWas::ExpressionFailed:
        if (result.isOk()) {
          colour = Colour::Success;
          passOrFail = "FAILED - but was ok";
        } else {
          colour = Colour::Error;
          passOrFail = "FAILED";
        }
        if (_stats.infoMessages.size() == 1) messageLabel = "with message";
        if (_stats.infoMessages.size() > 1) messageLabel = "with messages";
        break;
      case ResultWas::ThrewException:
        colour = Colour::Error;
        passOrFail = "FAILED";
        messageLabel = "due to unexpected exception with ";
        if (_stats.infoMessages.size() == 1) messageLabel += "message";
        if (_stats.infoMessages.size() > 1) messageLabel += "messages";
        break;
      case ResultWas::FatalErrorCondition:
        colour = Colour::Error;
        passOrFail = "FAILED";
        messageLabel = "due to a fatal error condition";
        break;
      case ResultWas::DidntThrowException:
        colour = Colour::Error;
        passOrFail = "FAILED";
        messageLabel = "because no exception was thrown where one was expected";
        break;
      case ResultWas::Info:
        messageLabel = "info";
        break;
      case ResultWas::Warning:
        messageLabel = "warning";
        break;
      case ResultWas::ExplicitFailure:
        passOrFail = "FAILED";
        colour = Colour::Error;
        if (_stats.infoMessages.size() == 1)
          messageLabel = "explicitly with message";
        if (_stats.infoMessages.size() > 1)
          messageLabel = "explicitly with messages";
        break;
        // These cases are here to prevent compiler warnings
      case ResultWas::Unknown:
      case ResultWas::FailureBit:
      case ResultWas::Exception:
        passOrFail = "** internal error **";
        colour = Colour::Error;
        break;
    }
  }

  void print() const {
    printSourceInfo();
    if (stats.totals.assertions.total() > 0) {
      printResultType();
      printOriginalExpression();
      printReconstructedExpression();
    } else {
      stream << '\n';
    }
    printMessage();
  }

 private:
  void printResultType() const {
    if (!passOrFail.empty()) {
      Colour colourGuard(colour);
      stream << passOrFail << ":\n";
    }
  }
  void printOriginalExpression() const {
    if (result.hasExpression()) {
      Colour colourGuard(Colour::OriginalExpression);
      stream << "  ";
      stream << result.getExpressionInMacro();
      stream << '\n';
    }
  }
  void printReconstructedExpression() const {
    if (result.hasExpandedExpression()) {
      stream << "with expansion:\n";
      Colour colourGuard(Colour::ReconstructedExpression);
      stream << Column(result.getExpandedExpression()).indent(2) << '\n';
    }
  }
  void printMessage() const {
    if (!messageLabel.empty()) stream << messageLabel << ':' << '\n';
    for (auto const& msg : messages) {
      // If this assertion is a warning ignore any INFO messages
      if (printInfoMessages || msg.type != ResultWas::Info)
        stream << Column(msg.message).indent(2) << '\n';
    }
  }
  void printSourceInfo() const {
    Colour colourGuard(Colour::FileName);
    stream << result.getSourceInfo() << ": ";
  }

  std::ostream& stream;
  AssertionStats const& stats;
  AssertionResult const& result;
  Colour::Code colour;
  std::string passOrFail;
  std::string messageLabel;
  std::string message;
  std::vector<MessageInfo> messages;
  bool printInfoMessages;
};

std::size_t makeRatio(std::size_t number, std::size_t total) {
  std::size_t ratio =
      total > 0 ? CATCH_CONFIG_CONSOLE_WIDTH * number / total : 0;
  return (ratio == 0 && number > 0) ? 1 : ratio;
}

std::size_t& findMax(std::size_t& i, std::size_t& j, std::size_t& k) {
  if (i > j && i > k)
    return i;
  else if (j > k)
    return j;
  else
    return k;
}

struct ColumnInfo {
  enum Justification { Left, Right };
  std::string name;
  int width;
  Justification justification;
};
struct ColumnBreak {};
struct RowBreak {};

class Duration {
  enum class Unit {
    Auto,
    Nanoseconds,
    Microseconds,
    Milliseconds,
    Seconds,
    Minutes
  };
  static const uint64_t s_nanosecondsInAMicrosecond = 1000;
  static const uint64_t s_nanosecondsInAMillisecond =
      1000 * s_nanosecondsInAMicrosecond;
  static const uint64_t s_nanosecondsInASecond =
      1000 * s_nanosecondsInAMillisecond;
  static const uint64_t s_nanosecondsInAMinute = 60 * s_nanosecondsInASecond;

  uint64_t m_inNanoseconds;
  Unit m_units;

 public:
  explicit Duration(uint64_t inNanoseconds, Unit units = Unit::Auto)
      : m_inNanoseconds(inNanoseconds), m_units(units) {
    if (m_units == Unit::Auto) {
      if (m_inNanoseconds < s_nanosecondsInAMicrosecond)
        m_units = Unit::Nanoseconds;
      else if (m_inNanoseconds < s_nanosecondsInAMillisecond)
        m_units = Unit::Microseconds;
      else if (m_inNanoseconds < s_nanosecondsInASecond)
        m_units = Unit::Milliseconds;
      else if (m_inNanoseconds < s_nanosecondsInAMinute)
        m_units = Unit::Seconds;
      else
        m_units = Unit::Minutes;
    }
  }

  auto value() const -> double {
    switch (m_units) {
      case Unit::Microseconds:
        return m_inNanoseconds /
               static_cast<double>(s_nanosecondsInAMicrosecond);
      case Unit::Milliseconds:
        return m_inNanoseconds /
               static_cast<double>(s_nanosecondsInAMillisecond);
      case Unit::Seconds:
        return m_inNanoseconds / static_cast<double>(s_nanosecondsInASecond);
      case Unit::Minutes:
        return m_inNanoseconds / static_cast<double>(s_nanosecondsInAMinute);
      default:
        return static_cast<double>(m_inNanoseconds);
    }
  }
  auto unitsAsString() const -> std::string {
    switch (m_units) {
      case Unit::Nanoseconds:
        return "ns";
      case Unit::Microseconds:
        return "µs";
      case Unit::Milliseconds:
        return "ms";
      case Unit::Seconds:
        return "s";
      case Unit::Minutes:
        return "m";
      default:
        return "** internal error **";
    }
  }
  friend auto operator<<(std::ostream& os, Duration const& duration)
      -> std::ostream& {
    return os << duration.value() << " " << duration.unitsAsString();
  }
};
}  // namespace

class TablePrinter {
  std::ostream& m_os;
  std::vector<ColumnInfo> m_columnInfos;
  std::ostringstream m_oss;
  int m_currentColumn = -1;
  bool m_isOpen = false;

 public:
  TablePrinter(std::ostream& os, std::vector<ColumnInfo> columnInfos)
      : m_os(os), m_columnInfos(std::move(columnInfos)) {}

  auto columnInfos() const -> std::vector<ColumnInfo> const& {
    return m_columnInfos;
  }

  void open() {
    if (!m_isOpen) {
      m_isOpen = true;
      *this << RowBreak();
      for (auto const& info : m_columnInfos)
        *this << info.name << ColumnBreak();
      *this << RowBreak();
      m_os << Catch::getLineOfChars<'-'>() << "\n";
    }
  }
  void close() {
    if (m_isOpen) {
      *this << RowBreak();
      m_os << std::endl;
      m_isOpen = false;
    }
  }

  template <typename T>
  friend TablePrinter& operator<<(TablePrinter& tp, T const& value) {
    tp.m_oss << value;
    return tp;
  }

  friend TablePrinter& operator<<(TablePrinter& tp, ColumnBreak) {
    auto colStr = tp.m_oss.str();
    // This takes account of utf8 encodings
    auto strSize = Catch::StringRef(colStr).numberOfCharacters();
    tp.m_oss.str("");
    tp.open();
    if (tp.m_currentColumn == static_cast<int>(tp.m_columnInfos.size() - 1)) {
      tp.m_currentColumn = -1;
      tp.m_os << "\n";
    }
    tp.m_currentColumn++;

    auto colInfo = tp.m_columnInfos[tp.m_currentColumn];
    auto padding = (strSize + 2 < static_cast<std::size_t>(colInfo.width))
                       ? std::string(colInfo.width - (strSize + 2), ' ')
                       : std::string();
    if (colInfo.justification == ColumnInfo::Left)
      tp.m_os << colStr << padding << " ";
    else
      tp.m_os << padding << colStr << " ";
    return tp;
  }

  friend TablePrinter& operator<<(TablePrinter& tp, RowBreak) {
    if (tp.m_currentColumn > 0) {
      tp.m_os << "\n";
      tp.m_currentColumn = -1;
    }
    return tp;
  }
};

ConsoleReporter::ConsoleReporter(ReporterConfig const& config)
    : StreamingReporterBase(config),
      m_tablePrinter(new TablePrinter(
          config.stream(), {{"benchmark name", CATCH_CONFIG_CONSOLE_WIDTH - 32,
                             ColumnInfo::Left},
                            {"iters", 8, ColumnInfo::Right},
                            {"elapsed ns", 14, ColumnInfo::Right},
                            {"average", 14, ColumnInfo::Right}})) {}
ConsoleReporter::~ConsoleReporter() = default;

std::string ConsoleReporter::getDescription() {
  return "Reports test results as plain lines of text";
}

void ConsoleReporter::noMatchingTestCases(std::string const& spec) {
  stream << "No test cases matched '" << spec << '\'' << std::endl;
}

void ConsoleReporter::assertionStarting(AssertionInfo const&) {}

bool ConsoleReporter::assertionEnded(AssertionStats const& _assertionStats) {
  AssertionResult const& result = _assertionStats.assertionResult;

  bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

  // Drop out if result was successful but we're not printing them.
  if (!includeResults && result.getResultType() != ResultWas::Warning)
    return false;

  lazyPrint();

  ConsoleAssertionPrinter printer(stream, _assertionStats, includeResults);
  printer.print();
  stream << std::endl;
  return true;
}

void ConsoleReporter::sectionStarting(SectionInfo const& _sectionInfo) {
  m_headerPrinted = false;
  StreamingReporterBase::sectionStarting(_sectionInfo);
}
void ConsoleReporter::sectionEnded(SectionStats const& _sectionStats) {
  m_tablePrinter->close();
  if (_sectionStats.missingAssertions) {
    lazyPrint();
    Colour colour(Colour::ResultError);
    if (m_sectionStack.size() > 1)
      stream << "\nNo assertions in section";
    else
      stream << "\nNo assertions in test case";
    stream << " '" << _sectionStats.sectionInfo.name << "'\n" << std::endl;
  }
  if (m_config->showDurations() == ShowDurations::Always) {
    stream << getFormattedDuration(_sectionStats.durationInSeconds)
           << " s: " << _sectionStats.sectionInfo.name << std::endl;
  }
  if (m_headerPrinted) { m_headerPrinted = false; }
  StreamingReporterBase::sectionEnded(_sectionStats);
}

void ConsoleReporter::benchmarkStarting(BenchmarkInfo const& info) {
  lazyPrintWithoutClosingBenchmarkTable();

  auto nameCol = Column(info.name).width(
      static_cast<std::size_t>(m_tablePrinter->columnInfos()[0].width - 2));

  bool firstLine = true;
  for (auto line : nameCol) {
    if (!firstLine)
      (*m_tablePrinter) << ColumnBreak() << ColumnBreak() << ColumnBreak();
    else
      firstLine = false;

    (*m_tablePrinter) << line << ColumnBreak();
  }
}
void ConsoleReporter::benchmarkEnded(BenchmarkStats const& stats) {
  Duration average(stats.elapsedTimeInNanoseconds / stats.iterations);
  (*m_tablePrinter) << stats.iterations << ColumnBreak()
                    << stats.elapsedTimeInNanoseconds << ColumnBreak()
                    << average << ColumnBreak();
}

void ConsoleReporter::testCaseEnded(TestCaseStats const& _testCaseStats) {
  m_tablePrinter->close();
  StreamingReporterBase::testCaseEnded(_testCaseStats);
  m_headerPrinted = false;
}
void ConsoleReporter::testGroupEnded(TestGroupStats const& _testGroupStats) {
  if (currentGroupInfo.used) {
    printSummaryDivider();
    stream << "Summary for group '" << _testGroupStats.groupInfo.name << "':\n";
    printTotals(_testGroupStats.totals);
    stream << '\n' << std::endl;
  }
  StreamingReporterBase::testGroupEnded(_testGroupStats);
}
void ConsoleReporter::testRunEnded(TestRunStats const& _testRunStats) {
  printTotalsDivider(_testRunStats.totals);
  printTotals(_testRunStats.totals);
  stream << std::endl;
  StreamingReporterBase::testRunEnded(_testRunStats);
}

void ConsoleReporter::lazyPrint() {
  m_tablePrinter->close();
  lazyPrintWithoutClosingBenchmarkTable();
}

void ConsoleReporter::lazyPrintWithoutClosingBenchmarkTable() {
  if (!currentTestRunInfo.used) lazyPrintRunInfo();
  if (!currentGroupInfo.used) lazyPrintGroupInfo();

  if (!m_headerPrinted) {
    printTestCaseAndSectionHeader();
    m_headerPrinted = true;
  }
}
void ConsoleReporter::lazyPrintRunInfo() {
  stream << '\n' << getLineOfChars<'~'>() << '\n';
  Colour colour(Colour::SecondaryText);
  stream << currentTestRunInfo->name << " is a Catch v" << libraryVersion()
         << " host application.\n"
         << "Run with -? for options\n\n";

  if (m_config->rngSeed() != 0)
    stream << "Randomness seeded to: " << m_config->rngSeed() << "\n\n";

  currentTestRunInfo.used = true;
}
void ConsoleReporter::lazyPrintGroupInfo() {
  if (!currentGroupInfo->name.empty() && currentGroupInfo->groupsCounts > 1) {
    printClosedHeader("Group: " + currentGroupInfo->name);
    currentGroupInfo.used = true;
  }
}
void ConsoleReporter::printTestCaseAndSectionHeader() {
  assert(!m_sectionStack.empty());
  printOpenHeader(currentTestCaseInfo->name);

  if (m_sectionStack.size() > 1) {
    Colour colourGuard(Colour::Headers);

    auto it = m_sectionStack.begin() + 1,  // Skip first section (test case)
        itEnd = m_sectionStack.end();
    for (; it != itEnd; ++it) printHeaderString(it->name, 2);
  }

  SourceLineInfo lineInfo = m_sectionStack.back().lineInfo;

  if (!lineInfo.empty()) {
    stream << getLineOfChars<'-'>() << '\n';
    Colour colourGuard(Colour::FileName);
    stream << lineInfo << '\n';
  }
  stream << getLineOfChars<'.'>() << '\n' << std::endl;
}

void ConsoleReporter::printClosedHeader(std::string const& _name) {
  printOpenHeader(_name);
  stream << getLineOfChars<'.'>() << '\n';
}
void ConsoleReporter::printOpenHeader(std::string const& _name) {
  stream << getLineOfChars<'-'>() << '\n';
  {
    Colour colourGuard(Colour::Headers);
    printHeaderString(_name);
  }
}

// if string has a : in first line will set indent to follow it on
// subsequent lines
void ConsoleReporter::printHeaderString(std::string const& _string,
                                        std::size_t indent) {
  std::size_t i = _string.find(": ");
  if (i != std::string::npos)
    i += 2;
  else
    i = 0;
  stream << Column(_string).indent(indent + i).initialIndent(indent) << '\n';
}

struct SummaryColumn {
  SummaryColumn(std::string _label, Colour::Code _colour)
      : label(std::move(_label)), colour(_colour) {}
  SummaryColumn addRow(std::size_t count) {
    ReusableStringStream rss;
    rss << count;
    std::string row = rss.str();
    for (auto& oldRow : rows) {
      while (oldRow.size() < row.size()) oldRow = ' ' + oldRow;
      while (oldRow.size() > row.size()) row = ' ' + row;
    }
    rows.push_back(row);
    return *this;
  }

  std::string label;
  Colour::Code colour;
  std::vector<std::string> rows;
};

void ConsoleReporter::printTotals(Totals const& totals) {
  if (totals.testCases.total() == 0) {
    stream << Colour(Colour::Warning) << "No tests ran\n";
  } else if (totals.assertions.total() > 0 && totals.testCases.allPassed()) {
    stream << Colour(Colour::ResultSuccess) << "All tests passed";
    stream << " (" << pluralise(totals.assertions.passed, "assertion") << " in "
           << pluralise(totals.testCases.passed, "test case") << ')' << '\n';
  } else {
    std::vector<SummaryColumn> columns;
    columns.push_back(SummaryColumn("", Colour::None)
                          .addRow(totals.testCases.total())
                          .addRow(totals.assertions.total()));
    columns.push_back(SummaryColumn("passed", Colour::Success)
                          .addRow(totals.testCases.passed)
                          .addRow(totals.assertions.passed));
    columns.push_back(SummaryColumn("failed", Colour::ResultError)
                          .addRow(totals.testCases.failed)
                          .addRow(totals.assertions.failed));
    columns.push_back(
        SummaryColumn("failed as expected", Colour::ResultExpectedFailure)
            .addRow(totals.testCases.failedButOk)
            .addRow(totals.assertions.failedButOk));

    printSummaryRow("test cases", columns, 0);
    printSummaryRow("assertions", columns, 1);
  }
}
void ConsoleReporter::printSummaryRow(std::string const& label,
                                      std::vector<SummaryColumn> const& cols,
                                      std::size_t row) {
  for (auto col : cols) {
    std::string value = col.rows[row];
    if (col.label.empty()) {
      stream << label << ": ";
      if (value != "0")
        stream << value;
      else
        stream << Colour(Colour::Warning) << "- none -";
    } else if (value != "0") {
      stream << Colour(Colour::LightGrey) << " | ";
      stream << Colour(col.colour) << value << ' ' << col.label;
    }
  }
  stream << '\n';
}

void ConsoleReporter::printTotalsDivider(Totals const& totals) {
  if (totals.testCases.total() > 0) {
    std::size_t failedRatio =
        makeRatio(totals.testCases.failed, totals.testCases.total());
    std::size_t failedButOkRatio =
        makeRatio(totals.testCases.failedButOk, totals.testCases.total());
    std::size_t passedRatio =
        makeRatio(totals.testCases.passed, totals.testCases.total());
    while (failedRatio + failedButOkRatio + passedRatio <
           CATCH_CONFIG_CONSOLE_WIDTH - 1)
      findMax(failedRatio, failedButOkRatio, passedRatio)++;
    while (failedRatio + failedButOkRatio + passedRatio >
           CATCH_CONFIG_CONSOLE_WIDTH - 1)
      findMax(failedRatio, failedButOkRatio, passedRatio)--;

    stream << Colour(Colour::Error) << std::string(failedRatio, '=');
    stream << Colour(Colour::ResultExpectedFailure)
           << std::string(failedButOkRatio, '=');
    if (totals.testCases.allPassed())
      stream << Colour(Colour::ResultSuccess) << std::string(passedRatio, '=');
    else
      stream << Colour(Colour::Success) << std::string(passedRatio, '=');
  } else {
    stream << Colour(Colour::Warning)
           << std::string(CATCH_CONFIG_CONSOLE_WIDTH - 1, '=');
  }
  stream << '\n';
}
void ConsoleReporter::printSummaryDivider() {
  stream << getLineOfChars<'-'>() << '\n';
}

CATCH_REGISTER_REPORTER("console", ConsoleReporter)

}  // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
// end catch_reporter_console.cpp
// start catch_reporter_junit.cpp

#include <algorithm>
#include <cassert>
#include <ctime>
#include <sstream>

namespace Catch {

namespace {
std::string getCurrentTimestamp() {
  // Beware, this is not reentrant because of backward compatibility issues
  // Also, UTC only, again because of backward compatibility (%z is C++11)
  time_t rawtime;
  std::time(&rawtime);
  auto const timeStampSize = sizeof("2017-01-16T17:06:45Z");

#ifdef _MSC_VER
  std::tm timeInfo = {};
  gmtime_s(&timeInfo, &rawtime);
#else
  std::tm* timeInfo;
  timeInfo = std::gmtime(&rawtime);
#endif

  char timeStamp[timeStampSize];
  const char* const fmt = "%Y-%m-%dT%H:%M:%SZ";

#ifdef _MSC_VER
  std::strftime(timeStamp, timeStampSize, fmt, &timeInfo);
#else
  std::strftime(timeStamp, timeStampSize, fmt, timeInfo);
#endif
  return std::string(timeStamp);
}

std::string fileNameTag(const std::vector<std::string>& tags) {
  auto it = std::find_if(begin(tags), end(tags), [](std::string const& tag) {
    return tag.front() == '#';
  });
  if (it != tags.end()) return it->substr(1);
  return std::string();
}
}  // anonymous namespace

JunitReporter::JunitReporter(ReporterConfig const& _config)
    : CumulativeReporterBase(_config), xml(_config.stream()) {
  m_reporterPrefs.shouldRedirectStdOut = true;
  m_reporterPrefs.shouldReportAllAssertions = true;
}

JunitReporter::~JunitReporter() {}

std::string JunitReporter::getDescription() {
  return "Reports test results in an XML format that looks like Ant's "
         "junitreport target";
}

void JunitReporter::noMatchingTestCases(std::string const& /*spec*/) {}

void JunitReporter::testRunStarting(TestRunInfo const& runInfo) {
  CumulativeReporterBase::testRunStarting(runInfo);
  xml.startElement("testsuites");
}

void JunitReporter::testGroupStarting(GroupInfo const& groupInfo) {
  suiteTimer.start();
  stdOutForSuite.clear();
  stdErrForSuite.clear();
  unexpectedExceptions = 0;
  CumulativeReporterBase::testGroupStarting(groupInfo);
}

void JunitReporter::testCaseStarting(TestCaseInfo const& testCaseInfo) {
  m_okToFail = testCaseInfo.okToFail();
}

bool JunitReporter::assertionEnded(AssertionStats const& assertionStats) {
  if (assertionStats.assertionResult.getResultType() ==
          ResultWas::ThrewException &&
      !m_okToFail)
    unexpectedExceptions++;
  return CumulativeReporterBase::assertionEnded(assertionStats);
}

void JunitReporter::testCaseEnded(TestCaseStats const& testCaseStats) {
  stdOutForSuite += testCaseStats.stdOut;
  stdErrForSuite += testCaseStats.stdErr;
  CumulativeReporterBase::testCaseEnded(testCaseStats);
}

void JunitReporter::testGroupEnded(TestGroupStats const& testGroupStats) {
  double suiteTime = suiteTimer.getElapsedSeconds();
  CumulativeReporterBase::testGroupEnded(testGroupStats);
  writeGroup(*m_testGroups.back(), suiteTime);
}

void JunitReporter::testRunEndedCumulative() { xml.endElement(); }

void JunitReporter::writeGroup(TestGroupNode const& groupNode,
                               double suiteTime) {
  XmlWriter::ScopedElement e = xml.scopedElement("testsuite");
  TestGroupStats const& stats = groupNode.value;
  xml.writeAttribute("name", stats.groupInfo.name);
  xml.writeAttribute("errors", unexpectedExceptions);
  xml.writeAttribute("failures",
                     stats.totals.assertions.failed - unexpectedExceptions);
  xml.writeAttribute("tests", stats.totals.assertions.total());
  xml.writeAttribute("hostname", "tbd");  // !TBD
  if (m_config->showDurations() == ShowDurations::Never)
    xml.writeAttribute("time", "");
  else
    xml.writeAttribute("time", suiteTime);
  xml.writeAttribute("timestamp", getCurrentTimestamp());

  // Write test cases
  for (auto const& child : groupNode.children) writeTestCase(*child);

  xml.scopedElement("system-out").writeText(trim(stdOutForSuite), false);
  xml.scopedElement("system-err").writeText(trim(stdErrForSuite), false);
}

void JunitReporter::writeTestCase(TestCaseNode const& testCaseNode) {
  TestCaseStats const& stats = testCaseNode.value;

  // All test cases have exactly one section - which represents the
  // test case itself. That section may have 0-n nested sections
  assert(testCaseNode.children.size() == 1);
  SectionNode const& rootSection = *testCaseNode.children.front();

  std::string className = stats.testInfo.className;

  if (className.empty()) {
    className = fileNameTag(stats.testInfo.tags);
    if (className.empty()) className = "global";
  }

  if (!m_config->name().empty()) className = m_config->name() + "." + className;

  writeSection(className, "", rootSection);
}

void JunitReporter::writeSection(std::string const& className,
                                 std::string const& rootName,
                                 SectionNode const& sectionNode) {
  std::string name = trim(sectionNode.stats.sectionInfo.name);
  if (!rootName.empty()) name = rootName + '/' + name;

  if (!sectionNode.assertions.empty() || !sectionNode.stdOut.empty() ||
      !sectionNode.stdErr.empty()) {
    XmlWriter::ScopedElement e = xml.scopedElement("testcase");
    if (className.empty()) {
      xml.writeAttribute("classname", name);
      xml.writeAttribute("name", "root");
    } else {
      xml.writeAttribute("classname", className);
      xml.writeAttribute("name", name);
    }
    xml.writeAttribute("time", ::Catch::Detail::stringify(
                                   sectionNode.stats.durationInSeconds));

    writeAssertions(sectionNode);

    if (!sectionNode.stdOut.empty())
      xml.scopedElement("system-out")
          .writeText(trim(sectionNode.stdOut), false);
    if (!sectionNode.stdErr.empty())
      xml.scopedElement("system-err")
          .writeText(trim(sectionNode.stdErr), false);
  }
  for (auto const& childNode : sectionNode.childSections)
    if (className.empty())
      writeSection(name, "", *childNode);
    else
      writeSection(className, name, *childNode);
}

void JunitReporter::writeAssertions(SectionNode const& sectionNode) {
  for (auto const& assertion : sectionNode.assertions)
    writeAssertion(assertion);
}

void JunitReporter::writeAssertion(AssertionStats const& stats) {
  AssertionResult const& result = stats.assertionResult;
  if (!result.isOk()) {
    std::string elementName;
    switch (result.getResultType()) {
      case ResultWas::ThrewException:
      case ResultWas::FatalErrorCondition:
        elementName = "error";
        break;
      case ResultWas::ExplicitFailure:
        elementName = "failure";
        break;
      case ResultWas::ExpressionFailed:
        elementName = "failure";
        break;
      case ResultWas::DidntThrowException:
        elementName = "failure";
        break;

      // We should never see these here:
      case ResultWas::Info:
      case ResultWas::Warning:
      case ResultWas::Ok:
      case ResultWas::Unknown:
      case ResultWas::FailureBit:
      case ResultWas::Exception:
        elementName = "internalError";
        break;
    }

    XmlWriter::ScopedElement e = xml.scopedElement(elementName);

    xml.writeAttribute("message", result.getExpandedExpression());
    xml.writeAttribute("type", result.getTestMacroName());

    ReusableStringStream rss;
    if (!result.getMessage().empty()) rss << result.getMessage() << '\n';
    for (auto const& msg : stats.infoMessages)
      if (msg.type == ResultWas::Info) rss << msg.message << '\n';

    rss << "at " << result.getSourceInfo();
    xml.writeText(rss.str(), false);
  }
}

CATCH_REGISTER_REPORTER("junit", JunitReporter)

}  // end namespace Catch
// end catch_reporter_junit.cpp
// start catch_reporter_listening.cpp

#include <cassert>

namespace Catch {

ListeningReporter::ListeningReporter() {
  // We will assume that listeners will always want all assertions
  m_preferences.shouldReportAllAssertions = true;
}

void ListeningReporter::addListener(IStreamingReporterPtr&& listener) {
  m_listeners.push_back(std::move(listener));
}

void ListeningReporter::addReporter(IStreamingReporterPtr&& reporter) {
  assert(!m_reporter && "Listening reporter can wrap only 1 real reporter");
  m_reporter = std::move(reporter);
  m_preferences.shouldRedirectStdOut =
      m_reporter->getPreferences().shouldRedirectStdOut;
}

ReporterPreferences ListeningReporter::getPreferences() const {
  return m_preferences;
}

std::set<Verbosity> ListeningReporter::getSupportedVerbosities() {
  return std::set<Verbosity>{};
}

void ListeningReporter::noMatchingTestCases(std::string const& spec) {
  for (auto const& listener : m_listeners) {
    listener->noMatchingTestCases(spec);
  }
  m_reporter->noMatchingTestCases(spec);
}

void ListeningReporter::benchmarkStarting(BenchmarkInfo const& benchmarkInfo) {
  for (auto const& listener : m_listeners) {
    listener->benchmarkStarting(benchmarkInfo);
  }
  m_reporter->benchmarkStarting(benchmarkInfo);
}
void ListeningReporter::benchmarkEnded(BenchmarkStats const& benchmarkStats) {
  for (auto const& listener : m_listeners) {
    listener->benchmarkEnded(benchmarkStats);
  }
  m_reporter->benchmarkEnded(benchmarkStats);
}

void ListeningReporter::testRunStarting(TestRunInfo const& testRunInfo) {
  for (auto const& listener : m_listeners) {
    listener->testRunStarting(testRunInfo);
  }
  m_reporter->testRunStarting(testRunInfo);
}

void ListeningReporter::testGroupStarting(GroupInfo const& groupInfo) {
  for (auto const& listener : m_listeners) {
    listener->testGroupStarting(groupInfo);
  }
  m_reporter->testGroupStarting(groupInfo);
}

void ListeningReporter::testCaseStarting(TestCaseInfo const& testInfo) {
  for (auto const& listener : m_listeners) {
    listener->testCaseStarting(testInfo);
  }
  m_reporter->testCaseStarting(testInfo);
}

void ListeningReporter::sectionStarting(SectionInfo const& sectionInfo) {
  for (auto const& listener : m_listeners) {
    listener->sectionStarting(sectionInfo);
  }
  m_reporter->sectionStarting(sectionInfo);
}

void ListeningReporter::assertionStarting(AssertionInfo const& assertionInfo) {
  for (auto const& listener : m_listeners) {
    listener->assertionStarting(assertionInfo);
  }
  m_reporter->assertionStarting(assertionInfo);
}

// The return value indicates if the messages buffer should be cleared:
bool ListeningReporter::assertionEnded(AssertionStats const& assertionStats) {
  for (auto const& listener : m_listeners) {
    static_cast<void>(listener->assertionEnded(assertionStats));
  }
  return m_reporter->assertionEnded(assertionStats);
}

void ListeningReporter::sectionEnded(SectionStats const& sectionStats) {
  for (auto const& listener : m_listeners) {
    listener->sectionEnded(sectionStats);
  }
  m_reporter->sectionEnded(sectionStats);
}

void ListeningReporter::testCaseEnded(TestCaseStats const& testCaseStats) {
  for (auto const& listener : m_listeners) {
    listener->testCaseEnded(testCaseStats);
  }
  m_reporter->testCaseEnded(testCaseStats);
}

void ListeningReporter::testGroupEnded(TestGroupStats const& testGroupStats) {
  for (auto const& listener : m_listeners) {
    listener->testGroupEnded(testGroupStats);
  }
  m_reporter->testGroupEnded(testGroupStats);
}

void ListeningReporter::testRunEnded(TestRunStats const& testRunStats) {
  for (auto const& listener : m_listeners) {
    listener->testRunEnded(testRunStats);
  }
  m_reporter->testRunEnded(testRunStats);
}

void ListeningReporter::skipTest(TestCaseInfo const& testInfo) {
  for (auto const& listener : m_listeners) { listener->skipTest(testInfo); }
  m_reporter->skipTest(testInfo);
}

bool ListeningReporter::isMulti() const { return true; }

}  // end namespace Catch
// end catch_reporter_listening.cpp
// start catch_reporter_xml.cpp

#if defined(_MSC_VER)
#pragma warning(push)
#pragma warning(disable : 4061)  // Not all labels are EXPLICITLY handled in
                                 // switch Note that 4062 (not all labels are
                                 // handled and default is missing) is enabled
#endif

namespace Catch {
XmlReporter::XmlReporter(ReporterConfig const& _config)
    : StreamingReporterBase(_config), m_xml(_config.stream()) {
  m_reporterPrefs.shouldRedirectStdOut = true;
  m_reporterPrefs.shouldReportAllAssertions = true;
}

XmlReporter::~XmlReporter() = default;

std::string XmlReporter::getDescription() {
  return "Reports test results as an XML document";
}

std::string XmlReporter::getStylesheetRef() const { return std::string(); }

void XmlReporter::writeSourceInfo(SourceLineInfo const& sourceInfo) {
  m_xml.writeAttribute("filename", sourceInfo.file)
      .writeAttribute("line", sourceInfo.line);
}

void XmlReporter::noMatchingTestCases(std::string const& s) {
  StreamingReporterBase::noMatchingTestCases(s);
}

void XmlReporter::testRunStarting(TestRunInfo const& testInfo) {
  StreamingReporterBase::testRunStarting(testInfo);
  std::string stylesheetRef = getStylesheetRef();
  if (!stylesheetRef.empty()) m_xml.writeStylesheetRef(stylesheetRef);
  m_xml.startElement("Catch");
  if (!m_config->name().empty()) m_xml.writeAttribute("name", m_config->name());
  if (m_config->rngSeed() != 0)
    m_xml.scopedElement("Randomness")
        .writeAttribute("seed", m_config->rngSeed());
}

void XmlReporter::testGroupStarting(GroupInfo const& groupInfo) {
  StreamingReporterBase::testGroupStarting(groupInfo);
  m_xml.startElement("Group").writeAttribute("name", groupInfo.name);
}

void XmlReporter::testCaseStarting(TestCaseInfo const& testInfo) {
  StreamingReporterBase::testCaseStarting(testInfo);
  m_xml.startElement("TestCase")
      .writeAttribute("name", trim(testInfo.name))
      .writeAttribute("description", testInfo.description)
      .writeAttribute("tags", testInfo.tagsAsString());

  writeSourceInfo(testInfo.lineInfo);

  if (m_config->showDurations() == ShowDurations::Always)
    m_testCaseTimer.start();
  m_xml.ensureTagClosed();
}

void XmlReporter::sectionStarting(SectionInfo const& sectionInfo) {
  StreamingReporterBase::sectionStarting(sectionInfo);
  if (m_sectionDepth++ > 0) {
    m_xml.startElement("Section").writeAttribute("name",
                                                 trim(sectionInfo.name));
    writeSourceInfo(sectionInfo.lineInfo);
    m_xml.ensureTagClosed();
  }
}

void XmlReporter::assertionStarting(AssertionInfo const&) {}

bool XmlReporter::assertionEnded(AssertionStats const& assertionStats) {
  AssertionResult const& result = assertionStats.assertionResult;

  bool includeResults = m_config->includeSuccessfulResults() || !result.isOk();

  if (includeResults || result.getResultType() == ResultWas::Warning) {
    // Print any info messages in <Info> tags.
    for (auto const& msg : assertionStats.infoMessages) {
      if (msg.type == ResultWas::Info && includeResults) {
        m_xml.scopedElement("Info").writeText(msg.message);
      } else if (msg.type == ResultWas::Warning) {
        m_xml.scopedElement("Warning").writeText(msg.message);
      }
    }
  }

  // Drop out if result was successful but we're not printing them.
  if (!includeResults && result.getResultType() != ResultWas::Warning)
    return true;

  // Print the expression if there is one.
  if (result.hasExpression()) {
    m_xml.startElement("Expression")
        .writeAttribute("success", result.succeeded())
        .writeAttribute("type", result.getTestMacroName());

    writeSourceInfo(result.getSourceInfo());

    m_xml.scopedElement("Original").writeText(result.getExpression());
    m_xml.scopedElement("Expanded").writeText(result.getExpandedExpression());
  }

  // And... Print a result applicable to each result type.
  switch (result.getResultType()) {
    case ResultWas::ThrewException:
      m_xml.startElement("Exception");
      writeSourceInfo(result.getSourceInfo());
      m_xml.writeText(result.getMessage());
      m_xml.endElement();
      break;
    case ResultWas::FatalErrorCondition:
      m_xml.startElement("FatalErrorCondition");
      writeSourceInfo(result.getSourceInfo());
      m_xml.writeText(result.getMessage());
      m_xml.endElement();
      break;
    case ResultWas::Info:
      m_xml.scopedElement("Info").writeText(result.getMessage());
      break;
    case ResultWas::Warning:
      // Warning will already have been written
      break;
    case ResultWas::ExplicitFailure:
      m_xml.startElement("Failure");
      writeSourceInfo(result.getSourceInfo());
      m_xml.writeText(result.getMessage());
      m_xml.endElement();
      break;
    default:
      break;
  }

  if (result.hasExpression()) m_xml.endElement();

  return true;
}

void XmlReporter::sectionEnded(SectionStats const& sectionStats) {
  StreamingReporterBase::sectionEnded(sectionStats);
  if (--m_sectionDepth > 0) {
    XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResults");
    e.writeAttribute("successes", sectionStats.assertions.passed);
    e.writeAttribute("failures", sectionStats.assertions.failed);
    e.writeAttribute("expectedFailures", sectionStats.assertions.failedButOk);

    if (m_config->showDurations() == ShowDurations::Always)
      e.writeAttribute("durationInSeconds", sectionStats.durationInSeconds);

    m_xml.endElement();
  }
}

void XmlReporter::testCaseEnded(TestCaseStats const& testCaseStats) {
  StreamingReporterBase::testCaseEnded(testCaseStats);
  XmlWriter::ScopedElement e = m_xml.scopedElement("OverallResult");
  e.writeAttribute("success", testCaseStats.totals.assertions.allOk());

  if (m_config->showDurations() == ShowDurations::Always)
    e.writeAttribute("durationInSeconds", m_testCaseTimer.getElapsedSeconds());

  if (!testCaseStats.stdOut.empty())
    m_xml.scopedElement("StdOut").writeText(trim(testCaseStats.stdOut), false);
  if (!testCaseStats.stdErr.empty())
    m_xml.scopedElement("StdErr").writeText(trim(testCaseStats.stdErr), false);

  m_xml.endElement();
}

void XmlReporter::testGroupEnded(TestGroupStats const& testGroupStats) {
  StreamingReporterBase::testGroupEnded(testGroupStats);
  // TODO: Check testGroupStats.aborting and act accordingly.
  m_xml.scopedElement("OverallResults")
      .writeAttribute("successes", testGroupStats.totals.assertions.passed)
      .writeAttribute("failures", testGroupStats.totals.assertions.failed)
      .writeAttribute("expectedFailures",
                      testGroupStats.totals.assertions.failedButOk);
  m_xml.endElement();
}

void XmlReporter::testRunEnded(TestRunStats const& testRunStats) {
  StreamingReporterBase::testRunEnded(testRunStats);
  m_xml.scopedElement("OverallResults")
      .writeAttribute("successes", testRunStats.totals.assertions.passed)
      .writeAttribute("failures", testRunStats.totals.assertions.failed)
      .writeAttribute("expectedFailures",
                      testRunStats.totals.assertions.failedButOk);
  m_xml.endElement();
}

CATCH_REGISTER_REPORTER("xml", XmlReporter)

}  // end namespace Catch

#if defined(_MSC_VER)
#pragma warning(pop)
#endif
// end catch_reporter_xml.cpp

namespace Catch {
LeakDetector leakDetector;
}

#ifdef __clang__
#pragma clang diagnostic pop
#endif

// end catch_impl.hpp
#endif

#ifdef CATCH_CONFIG_MAIN
// start catch_default_main.hpp

#ifndef __OBJC__

#if defined(CATCH_CONFIG_WCHAR) && defined(WIN32) && defined(_UNICODE) && \
    !defined(DO_NOT_USE_WMAIN)
// Standard C/C++ Win32 Unicode wmain entry point
extern "C" int wmain(int argc, wchar_t* argv[], wchar_t*[]) {
#else
// Standard C/C++ main entry point
int main(int argc, char* argv[]) {
#endif

  return Catch::Session().run(argc, argv);
}

#else  // __OBJC__

// Objective-C entry point
int main(int argc, char* const argv[]) {
#if !CATCH_ARC_ENABLED
  NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
#endif

  Catch::registerTestMethods();
  int result = Catch::Session().run(argc, (char**)argv);

#if !CATCH_ARC_ENABLED
  [pool drain];
#endif

  return result;
}

#endif  // __OBJC__

// end catch_default_main.hpp
#endif

#if !defined(CATCH_CONFIG_IMPL_ONLY)

#ifdef CLARA_CONFIG_MAIN_NOT_DEFINED
#undef CLARA_CONFIG_MAIN
#endif

#if !defined(CATCH_CONFIG_DISABLE)
//////
// If this config identifier is defined then all CATCH macros are prefixed with
// CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE(...)                                               \
  INTERNAL_CATCH_TEST("CATCH_REQUIRE", Catch::ResultDisposition::Normal, \
                      __VA_ARGS__)
#define CATCH_REQUIRE_FALSE(...)                                              \
  INTERNAL_CATCH_TEST(                                                        \
      "CATCH_REQUIRE_FALSE",                                                  \
      Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, \
      __VA_ARGS__)

#define CATCH_REQUIRE_THROWS(...)               \
  INTERNAL_CATCH_THROWS("CATCH_REQUIRE_THROWS", \
                        Catch::ResultDisposition::Normal, "", __VA_ARGS__)
#define CATCH_REQUIRE_THROWS_AS(expr, exceptionType)                 \
  INTERNAL_CATCH_THROWS_AS("CATCH_REQUIRE_THROWS_AS", exceptionType, \
                           Catch::ResultDisposition::Normal, expr)
#define CATCH_REQUIRE_THROWS_WITH(expr, matcher)                               \
  INTERNAL_CATCH_THROWS_STR_MATCHES("CATCH_REQUIRE_THROWS_WITH",               \
                                    Catch::ResultDisposition::Normal, matcher, \
                                    expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher)             \
  INTERNAL_CATCH_THROWS_MATCHES("CATCH_REQUIRE_THROWS_MATCHES", exceptionType, \
                                Catch::ResultDisposition::Normal, matcher,     \
                                expr)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW(...)                 \
  INTERNAL_CATCH_NO_THROW("CATCH_REQUIRE_NOTHROW", \
                          Catch::ResultDisposition::Normal, __VA_ARGS__)

#define CATCH_CHECK(...) \
  INTERNAL_CATCH_TEST(   \
      "CATCH_CHECK", Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_CHECK_FALSE(...)                                      \
  INTERNAL_CATCH_TEST("CATCH_CHECK_FALSE",                          \
                      Catch::ResultDisposition::ContinueOnFailure | \
                          Catch::ResultDisposition::FalseTest,      \
                      __VA_ARGS__)
#define CATCH_CHECKED_IF(...)           \
  INTERNAL_CATCH_IF("CATCH_CHECKED_IF", \
                    Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_CHECKED_ELSE(...)                                    \
  INTERNAL_CATCH_ELSE("CATCH_CHECKED_ELSE",                        \
                      Catch::ResultDisposition::ContinueOnFailure, \
                      __VA_ARGS__)
#define CATCH_CHECK_NOFAIL(...)                                     \
  INTERNAL_CATCH_TEST("CATCH_CHECK_NOFAIL",                         \
                      Catch::ResultDisposition::ContinueOnFailure | \
                          Catch::ResultDisposition::SuppressFail,   \
                      __VA_ARGS__)

#define CATCH_CHECK_THROWS(...)                                          \
  INTERNAL_CATCH_THROWS("CATCH_CHECK_THROWS",                            \
                        Catch::ResultDisposition::ContinueOnFailure, "", \
                        __VA_ARGS__)
#define CATCH_CHECK_THROWS_AS(expr, exceptionType)                 \
  INTERNAL_CATCH_THROWS_AS("CATCH_CHECK_THROWS_AS", exceptionType, \
                           Catch::ResultDisposition::ContinueOnFailure, expr)
#define CATCH_CHECK_THROWS_WITH(expr, matcher)                                \
  INTERNAL_CATCH_THROWS_STR_MATCHES(                                          \
      "CATCH_CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, \
      matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES(expr, exceptionType, matcher)             \
  INTERNAL_CATCH_THROWS_MATCHES("CATCH_CHECK_THROWS_MATCHES", exceptionType, \
                                Catch::ResultDisposition::ContinueOnFailure, \
                                matcher, expr)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW(...)                                       \
  INTERNAL_CATCH_NO_THROW("CATCH_CHECK_NOTHROW",                       \
                          Catch::ResultDisposition::ContinueOnFailure, \
                          __VA_ARGS__)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT(arg, matcher)             \
  INTERNAL_CHECK_THAT("CATCH_CHECK_THAT", matcher, \
                      Catch::ResultDisposition::ContinueOnFailure, arg)

#define CATCH_REQUIRE_THAT(arg, matcher)             \
  INTERNAL_CHECK_THAT("CATCH_REQUIRE_THAT", matcher, \
                      Catch::ResultDisposition::Normal, arg)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO(msg) INTERNAL_CATCH_INFO("CATCH_INFO", msg)
#define CATCH_WARN(msg)                                       \
  INTERNAL_CATCH_MSG("CATCH_WARN", Catch::ResultWas::Warning, \
                     Catch::ResultDisposition::ContinueOnFailure, msg)
#define CATCH_CAPTURE(...)                                     \
  INTERNAL_CATCH_CAPTURE(INTERNAL_CATCH_UNIQUE_NAME(capturer), \
                         "CATCH_CAPTURE", __VA_ARGS__)

#define CATCH_TEST_CASE(...) INTERNAL_CATCH_TESTCASE(__VA_ARGS__)
#define CATCH_TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_TEST_CASE_METHOD(className, __VA_ARGS__)
#define CATCH_METHOD_AS_TEST_CASE(method, ...) \
  INTERNAL_CATCH_METHOD_AS_TEST_CASE(method, __VA_ARGS__)
#define CATCH_REGISTER_TEST_CASE(Function, ...) \
  INTERNAL_CATCH_REGISTER_TESTCASE(Function, __VA_ARGS__)
#define CATCH_SECTION(...) INTERNAL_CATCH_SECTION(__VA_ARGS__)
#define CATCH_DYNAMIC_SECTION(...) INTERNAL_CATCH_DYNAMIC_SECTION(__VA_ARGS__)
#define CATCH_FAIL(...)                                               \
  INTERNAL_CATCH_MSG("CATCH_FAIL", Catch::ResultWas::ExplicitFailure, \
                     Catch::ResultDisposition::Normal, __VA_ARGS__)
#define CATCH_FAIL_CHECK(...)                                               \
  INTERNAL_CATCH_MSG("CATCH_FAIL_CHECK", Catch::ResultWas::ExplicitFailure, \
                     Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define CATCH_SUCCEED(...)                                  \
  INTERNAL_CATCH_MSG("CATCH_SUCCEED", Catch::ResultWas::Ok, \
                     Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)

#define CATCH_ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define CATCH_TEMPLATE_TEST_CASE(...) \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
#define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
#else
#define CATCH_TEMPLATE_TEST_CASE(...) \
  INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__))
#define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_EXPAND_VARGS(                          \
      INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__))
#endif

#if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
#define CATCH_STATIC_REQUIRE(...)           \
  static_assert(__VA_ARGS__, #__VA_ARGS__); \
  CATCH_SUCCEED(#__VA_ARGS__)
#define CATCH_STATIC_REQUIRE_FALSE(...)                 \
  static_assert(!(__VA_ARGS__), "!(" #__VA_ARGS__ ")"); \
  CATCH_SUCCEED(#__VA_ARGS__)
#else
#define CATCH_STATIC_REQUIRE(...) CATCH_REQUIRE(__VA_ARGS__)
#define CATCH_STATIC_REQUIRE_FALSE(...) CATCH_REQUIRE_FALSE(__VA_ARGS__)
#endif

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO(...) CATCH_TEST_CASE("Scenario: " __VA_ARGS__)
#define CATCH_SCENARIO_METHOD(className, ...) \
  INTERNAL_CATCH_TEST_CASE_METHOD(className, "Scenario: " __VA_ARGS__)
#define CATCH_GIVEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("    Given: " << desc)
#define CATCH_AND_GIVEN(desc) \
  INTERNAL_CATCH_DYNAMIC_SECTION("And given: " << desc)
#define CATCH_WHEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     When: " << desc)
#define CATCH_AND_WHEN(desc) \
  INTERNAL_CATCH_DYNAMIC_SECTION(" And when: " << desc)
#define CATCH_THEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     Then: " << desc)
#define CATCH_AND_THEN(desc) \
  INTERNAL_CATCH_DYNAMIC_SECTION("      And: " << desc)

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not
// required
#else

#define REQUIRE(...) \
  INTERNAL_CATCH_TEST("REQUIRE", Catch::ResultDisposition::Normal, __VA_ARGS__)
#define REQUIRE_FALSE(...)                                                    \
  INTERNAL_CATCH_TEST(                                                        \
      "REQUIRE_FALSE",                                                        \
      Catch::ResultDisposition::Normal | Catch::ResultDisposition::FalseTest, \
      __VA_ARGS__)

#define REQUIRE_THROWS(...)                                                 \
  INTERNAL_CATCH_THROWS("REQUIRE_THROWS", Catch::ResultDisposition::Normal, \
                        __VA_ARGS__)
#define REQUIRE_THROWS_AS(expr, exceptionType)                 \
  INTERNAL_CATCH_THROWS_AS("REQUIRE_THROWS_AS", exceptionType, \
                           Catch::ResultDisposition::Normal, expr)
#define REQUIRE_THROWS_WITH(expr, matcher) \
  INTERNAL_CATCH_THROWS_STR_MATCHES(       \
      "REQUIRE_THROWS_WITH", Catch::ResultDisposition::Normal, matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher)               \
  INTERNAL_CATCH_THROWS_MATCHES("REQUIRE_THROWS_MATCHES", exceptionType,   \
                                Catch::ResultDisposition::Normal, matcher, \
                                expr)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW(...)                                                   \
  INTERNAL_CATCH_NO_THROW("REQUIRE_NOTHROW", Catch::ResultDisposition::Normal, \
                          __VA_ARGS__)

#define CHECK(...)                                                          \
  INTERNAL_CATCH_TEST("CHECK", Catch::ResultDisposition::ContinueOnFailure, \
                      __VA_ARGS__)
#define CHECK_FALSE(...)                                            \
  INTERNAL_CATCH_TEST("CHECK_FALSE",                                \
                      Catch::ResultDisposition::ContinueOnFailure | \
                          Catch::ResultDisposition::FalseTest,      \
                      __VA_ARGS__)
#define CHECKED_IF(...)                                                        \
  INTERNAL_CATCH_IF("CHECKED_IF", Catch::ResultDisposition::ContinueOnFailure, \
                    __VA_ARGS__)
#define CHECKED_ELSE(...)                                          \
  INTERNAL_CATCH_ELSE("CHECKED_ELSE",                              \
                      Catch::ResultDisposition::ContinueOnFailure, \
                      __VA_ARGS__)
#define CHECK_NOFAIL(...)                                           \
  INTERNAL_CATCH_TEST("CHECK_NOFAIL",                               \
                      Catch::ResultDisposition::ContinueOnFailure | \
                          Catch::ResultDisposition::SuppressFail,   \
                      __VA_ARGS__)

#define CHECK_THROWS(...)                                            \
  INTERNAL_CATCH_THROWS("CHECK_THROWS",                              \
                        Catch::ResultDisposition::ContinueOnFailure, \
                        __VA_ARGS__)
#define CHECK_THROWS_AS(expr, exceptionType)                 \
  INTERNAL_CATCH_THROWS_AS("CHECK_THROWS_AS", exceptionType, \
                           Catch::ResultDisposition::ContinueOnFailure, expr)
#define CHECK_THROWS_WITH(expr, matcher)                                \
  INTERNAL_CATCH_THROWS_STR_MATCHES(                                    \
      "CHECK_THROWS_WITH", Catch::ResultDisposition::ContinueOnFailure, \
      matcher, expr)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES(expr, exceptionType, matcher)                   \
  INTERNAL_CATCH_THROWS_MATCHES("CHECK_THROWS_MATCHES", exceptionType,       \
                                Catch::ResultDisposition::ContinueOnFailure, \
                                matcher, expr)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW(...)                                             \
  INTERNAL_CATCH_NO_THROW("CHECK_NOTHROW",                             \
                          Catch::ResultDisposition::ContinueOnFailure, \
                          __VA_ARGS__)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT(arg, matcher)             \
  INTERNAL_CHECK_THAT("CHECK_THAT", matcher, \
                      Catch::ResultDisposition::ContinueOnFailure, arg)

#define REQUIRE_THAT(arg, matcher)             \
  INTERNAL_CHECK_THAT("REQUIRE_THAT", matcher, \
                      Catch::ResultDisposition::Normal, arg)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO(msg) INTERNAL_CATCH_INFO("INFO", msg)
#define WARN(msg)                                       \
  INTERNAL_CATCH_MSG("WARN", Catch::ResultWas::Warning, \
                     Catch::ResultDisposition::ContinueOnFailure, msg)
#define CAPTURE(...)                                                      \
  INTERNAL_CATCH_CAPTURE(INTERNAL_CATCH_UNIQUE_NAME(capturer), "CAPTURE", \
                         __VA_ARGS__)

#define TEST_CASE(...) INTERNAL_CATCH_TESTCASE(__VA_ARGS__)
#define TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_TEST_CASE_METHOD(className, __VA_ARGS__)
#define METHOD_AS_TEST_CASE(method, ...) \
  INTERNAL_CATCH_METHOD_AS_TEST_CASE(method, __VA_ARGS__)
#define REGISTER_TEST_CASE(Function, ...) \
  INTERNAL_CATCH_REGISTER_TESTCASE(Function, __VA_ARGS__)
#define SECTION(...) INTERNAL_CATCH_SECTION(__VA_ARGS__)
#define DYNAMIC_SECTION(...) INTERNAL_CATCH_DYNAMIC_SECTION(__VA_ARGS__)
#define FAIL(...)                                               \
  INTERNAL_CATCH_MSG("FAIL", Catch::ResultWas::ExplicitFailure, \
                     Catch::ResultDisposition::Normal, __VA_ARGS__)
#define FAIL_CHECK(...)                                               \
  INTERNAL_CATCH_MSG("FAIL_CHECK", Catch::ResultWas::ExplicitFailure, \
                     Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define SUCCEED(...)                                  \
  INTERNAL_CATCH_MSG("SUCCEED", Catch::ResultWas::Ok, \
                     Catch::ResultDisposition::ContinueOnFailure, __VA_ARGS__)
#define ANON_TEST_CASE() INTERNAL_CATCH_TESTCASE()

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define TEMPLATE_TEST_CASE(...) INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__)
#define TEMPLATE_TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__)
#else
#define TEMPLATE_TEST_CASE(...) \
  INTERNAL_CATCH_EXPAND_VARGS(INTERNAL_CATCH_TEMPLATE_TEST_CASE(__VA_ARGS__))
#define TEMPLATE_TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_EXPAND_VARGS(                    \
      INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD(className, __VA_ARGS__))
#endif

#if !defined(CATCH_CONFIG_RUNTIME_STATIC_REQUIRE)
#define STATIC_REQUIRE(...)                 \
  static_assert(__VA_ARGS__, #__VA_ARGS__); \
  SUCCEED(#__VA_ARGS__)
#define STATIC_REQUIRE_FALSE(...)                       \
  static_assert(!(__VA_ARGS__), "!(" #__VA_ARGS__ ")"); \
  SUCCEED("!(" #__VA_ARGS__ ")")
#else
#define STATIC_REQUIRE(...) REQUIRE(__VA_ARGS__)
#define STATIC_REQUIRE_FALSE(...) REQUIRE_FALSE(__VA_ARGS__)
#endif

#endif

#define CATCH_TRANSLATE_EXCEPTION(signature) \
  INTERNAL_CATCH_TRANSLATE_EXCEPTION(signature)

// "BDD-style" convenience wrappers
#define SCENARIO(...) TEST_CASE("Scenario: " __VA_ARGS__)
#define SCENARIO_METHOD(className, ...) \
  INTERNAL_CATCH_TEST_CASE_METHOD(className, "Scenario: " __VA_ARGS__)

#define GIVEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("    Given: " << desc)
#define AND_GIVEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("And given: " << desc)
#define WHEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     When: " << desc)
#define AND_WHEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION(" And when: " << desc)
#define THEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("     Then: " << desc)
#define AND_THEN(desc) INTERNAL_CATCH_DYNAMIC_SECTION("      And: " << desc)

using Catch::Detail::Approx;

#else  // CATCH_CONFIG_DISABLE

//////
// If this config identifier is defined then all CATCH macros are prefixed with
// CATCH_
#ifdef CATCH_CONFIG_PREFIX_ALL

#define CATCH_REQUIRE(...) (void)(0)
#define CATCH_REQUIRE_FALSE(...) (void)(0)

#define CATCH_REQUIRE_THROWS(...) (void)(0)
#define CATCH_REQUIRE_THROWS_AS(expr, exceptionType) (void)(0)
#define CATCH_REQUIRE_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_REQUIRE_NOTHROW(...) (void)(0)

#define CATCH_CHECK(...) (void)(0)
#define CATCH_CHECK_FALSE(...) (void)(0)
#define CATCH_CHECKED_IF(...) if (__VA_ARGS__)
#define CATCH_CHECKED_ELSE(...) if (!(__VA_ARGS__))
#define CATCH_CHECK_NOFAIL(...) (void)(0)

#define CATCH_CHECK_THROWS(...) (void)(0)
#define CATCH_CHECK_THROWS_AS(expr, exceptionType) (void)(0)
#define CATCH_CHECK_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define CATCH_CHECK_NOTHROW(...) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CATCH_CHECK_THAT(arg, matcher) (void)(0)

#define CATCH_REQUIRE_THAT(arg, matcher) (void)(0)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS

#define CATCH_INFO(msg) (void)(0)
#define CATCH_WARN(msg) (void)(0)
#define CATCH_CAPTURE(msg) (void)(0)

#define CATCH_TEST_CASE(...)               \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define CATCH_TEST_CASE_METHOD(className, ...) \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION(     \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define CATCH_METHOD_AS_TEST_CASE(method, ...)
#define CATCH_REGISTER_TEST_CASE(Function, ...) (void)(0)
#define CATCH_SECTION(...)
#define CATCH_DYNAMIC_SECTION(...)
#define CATCH_FAIL(...) (void)(0)
#define CATCH_FAIL_CHECK(...) (void)(0)
#define CATCH_SUCCEED(...) (void)(0)

#define CATCH_ANON_TEST_CASE()             \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define CATCH_TEMPLATE_TEST_CASE(...)                \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(                    \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____))
#define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...)     \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(                           \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____), \
      className)
#else
#define CATCH_TEMPLATE_TEST_CASE(...)                    \
  INTERNAL_CATCH_EXPAND_VARGS(                           \
      INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION( \
          INTERNAL_CATCH_UNIQUE_NAME(                    \
              ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____)))
#define CATCH_TEMPLATE_TEST_CASE_METHOD(className, ...)         \
  INTERNAL_CATCH_EXPAND_VARGS(                                  \
      INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( \
          INTERNAL_CATCH_UNIQUE_NAME(                           \
              ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____), \
          className))
#endif

// "BDD-style" convenience wrappers
#define CATCH_SCENARIO(...)                \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define CATCH_SCENARIO_METHOD(className, ...)     \
  INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), className)
#define CATCH_GIVEN(desc)
#define CATCH_AND_GIVEN(desc)
#define CATCH_WHEN(desc)
#define CATCH_AND_WHEN(desc)
#define CATCH_THEN(desc)
#define CATCH_AND_THEN(desc)

#define CATCH_STATIC_REQUIRE(...) (void)(0)
#define CATCH_STATIC_REQUIRE_FALSE(...) (void)(0)

// If CATCH_CONFIG_PREFIX_ALL is not defined then the CATCH_ prefix is not
// required
#else

#define REQUIRE(...) (void)(0)
#define REQUIRE_FALSE(...) (void)(0)

#define REQUIRE_THROWS(...) (void)(0)
#define REQUIRE_THROWS_AS(expr, exceptionType) (void)(0)
#define REQUIRE_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define REQUIRE_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define REQUIRE_NOTHROW(...) (void)(0)

#define CHECK(...) (void)(0)
#define CHECK_FALSE(...) (void)(0)
#define CHECKED_IF(...) if (__VA_ARGS__)
#define CHECKED_ELSE(...) if (!(__VA_ARGS__))
#define CHECK_NOFAIL(...) (void)(0)

#define CHECK_THROWS(...) (void)(0)
#define CHECK_THROWS_AS(expr, exceptionType) (void)(0)
#define CHECK_THROWS_WITH(expr, matcher) (void)(0)
#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THROWS_MATCHES(expr, exceptionType, matcher) (void)(0)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS
#define CHECK_NOTHROW(...) (void)(0)

#if !defined(CATCH_CONFIG_DISABLE_MATCHERS)
#define CHECK_THAT(arg, matcher) (void)(0)

#define REQUIRE_THAT(arg, matcher) (void)(0)
#endif  // CATCH_CONFIG_DISABLE_MATCHERS

#define INFO(msg) (void)(0)
#define WARN(msg) (void)(0)
#define CAPTURE(msg) (void)(0)

#define TEST_CASE(...)                     \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define TEST_CASE_METHOD(className, ...)   \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define METHOD_AS_TEST_CASE(method, ...)
#define REGISTER_TEST_CASE(Function, ...) (void)(0)
#define SECTION(...)
#define DYNAMIC_SECTION(...)
#define FAIL(...) (void)(0)
#define FAIL_CHECK(...) (void)(0)
#define SUCCEED(...) (void)(0)
#define ANON_TEST_CASE()                   \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))

#ifndef CATCH_CONFIG_TRADITIONAL_MSVC_PREPROCESSOR
#define TEMPLATE_TEST_CASE(...)                      \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(                    \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____))
#define TEMPLATE_TEST_CASE_METHOD(className, ...)           \
  INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(                           \
          ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____), \
      className)
#else
#define TEMPLATE_TEST_CASE(...)                          \
  INTERNAL_CATCH_EXPAND_VARGS(                           \
      INTERNAL_CATCH_TEMPLATE_TEST_CASE_NO_REGISTRATION( \
          INTERNAL_CATCH_UNIQUE_NAME(                    \
              ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____)))
#define TEMPLATE_TEST_CASE_METHOD(className, ...)               \
  INTERNAL_CATCH_EXPAND_VARGS(                                  \
      INTERNAL_CATCH_TEMPLATE_TEST_CASE_METHOD_NO_REGISTRATION( \
          INTERNAL_CATCH_UNIQUE_NAME(                           \
              ____C_A_T_C_H____T_E_M_P_L_A_T_E____T_E_S_T____), \
          className))
#endif

#define STATIC_REQUIRE(...) (void)(0)
#define STATIC_REQUIRE_FALSE(...) (void)(0)

#endif

#define CATCH_TRANSLATE_EXCEPTION(signature)                          \
  INTERNAL_CATCH_TRANSLATE_EXCEPTION_NO_REG(                          \
      INTERNAL_CATCH_UNIQUE_NAME(catch_internal_ExceptionTranslator), \
      signature)

// "BDD-style" convenience wrappers
#define SCENARIO(...)                      \
  INTERNAL_CATCH_TESTCASE_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____))
#define SCENARIO_METHOD(className, ...)           \
  INTERNAL_CATCH_TESTCASE_METHOD_NO_REGISTRATION( \
      INTERNAL_CATCH_UNIQUE_NAME(____C_A_T_C_H____T_E_S_T____), className)

#define GIVEN(desc)
#define AND_GIVEN(desc)
#define WHEN(desc)
#define AND_WHEN(desc)
#define THEN(desc)
#define AND_THEN(desc)

using Catch::Detail::Approx;

#endif

#endif  // ! CATCH_CONFIG_IMPL_ONLY

// start catch_reenable_warnings.h

#ifdef __clang__
#ifdef __ICC  // icpc defines the __clang__ macro
#pragma warning(pop)
#else
#pragma clang diagnostic pop
#endif
#elif defined __GNUC__
#pragma GCC diagnostic pop
#endif

// end catch_reenable_warnings.h
// end catch.hpp
#endif  // TWOBLUECUBES_SINGLE_INCLUDE_CATCH_HPP_INCLUDED