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exception class for c functions which set errno

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This commit is contained in:
Pavel Labath 2011-02-27 00:03:17 +01:00
parent 9d6d26154a
commit 536f719c65
1 changed files with 12 additions and 0 deletions
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12
src/c++wrap.hh
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@ -24,8 +24,20 @@
#ifndef CPPWRAP_HH #ifndef CPPWRAP_HH
#define CPPWRAP_HH #define CPPWRAP_HH
#include <stdexcept>
#include <string> #include <string>
std::string strerror_r(int errnum); std::string strerror_r(int errnum);
class errno_error: public std::runtime_error {
typedef std::runtime_error Base;
public:
errno_error(const std::string &prefix, int err_ = errno)
: Base(prefix + ": " + strerror_r(err_)), err(err_)
{}
const int err;
};
#endif /* CPPWRAP_HH */ #endif /* CPPWRAP_HH */