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This comment expands all tabs using an 8-character tab-width. You should ignore this commit when using git blame or use git blame -w. In the early days, I used to use tabs where possible for indentation, since emacs did this automatically. In recent years, I have switched to only using spaces, which means qpdf source code has been a mixture of spaces and tabs. I have avoided cleaning this up because of not wanting gratuitous whitespaces change to cloud the output of git blame, but I changed my mind after discussing with users who view qpdf source code in editors/IDEs that have other tab widths by default and in light of the fact that I am planning to start applying automatic code formatting soon.
117 lines
2.5 KiB
C++
117 lines
2.5 KiB
C++
// We need to test the deprecated API
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#ifdef POINTERHOLDER_TRANSITION
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# undef POINTERHOLDER_TRANSITION
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#endif
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#define POINTERHOLDER_TRANSITION 0
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#include <qpdf/PointerHolder.hh>
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#include <iostream>
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#include <stdlib.h>
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#include <list>
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class Object
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{
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public:
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Object();
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~Object();
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void hello();
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void hello() const;
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private:
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static int next_id;
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int id;
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};
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int Object::next_id = 0;
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Object::Object()
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{
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this->id = ++next_id;
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std::cout << "created Object, id " << this->id << std::endl;
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}
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Object::~Object()
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{
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std::cout << "destroyed Object, id " << this->id << std::endl;
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}
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void
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Object::hello()
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{
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std::cout << "calling Object::hello for " << this->id << std::endl;
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}
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void
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Object::hello() const
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{
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std::cout << "calling Object::hello const for " << this->id << std::endl;
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}
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typedef PointerHolder<Object> ObjectHolder;
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void callHello(ObjectHolder& oh)
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{
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oh.getPointer()->hello();
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oh->hello();
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(*oh).hello();
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}
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void callHelloWithGet(ObjectHolder const& oh)
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{
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oh.get()->hello();
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oh->hello();
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(*oh).hello();
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}
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int main(int argc, char* argv[])
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{
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std::list<ObjectHolder> ol1;
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ObjectHolder oh0;
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{
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std::cout << "hello" << std::endl;
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Object* o1 = new Object;
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ObjectHolder oh1(o1);
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std::cout << "oh1 refcount = " << oh1.getRefcount() << std::endl;
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ObjectHolder oh2(oh1);
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std::cout << "oh1 refcount = " << oh1.getRefcount() << std::endl;
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std::cout << "oh2 refcount = " << oh2.use_count() << std::endl;
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ObjectHolder oh3(new Object);
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ObjectHolder oh4;
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ObjectHolder oh5;
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std::cout << "oh5 refcount = " << oh5.getRefcount() << std::endl;
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if (oh4 == oh5)
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{
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std::cout << "nulls equal" << std::endl;
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}
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oh3 = oh1;
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oh4 = oh2;
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if (oh3 == oh4)
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{
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std::cout << "equal okay" << std::endl;
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}
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if ((! (oh3 < oh4)) && (! (oh4 < oh3)))
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{
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std::cout << "less than okay" << std::endl;
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}
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ol1.push_back(oh3);
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ol1.push_back(oh3);
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Object* o3 = new Object;
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oh0 = o3;
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PointerHolder<Object const> oh6(new Object());
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oh6->hello();
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}
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ol1.front().getPointer()->hello();
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ol1.front()->hello();
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(*ol1.front()).hello();
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callHello(ol1.front());
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callHelloWithGet(ol1.front());
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ol1.pop_front();
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std::cout << "array" << std::endl;
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PointerHolder<Object> o_arr1_ph(true, new Object[2]);
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std::cout << "goodbye" << std::endl;
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return 0;
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}
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