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#ifndef POINTER_COMPARISON_TEST_HELPER_HPP
#define POINTER_COMPARISON_TEST_HELPER_HPP
#include <vector>
#include <memory>
#include <cstdint>
#include <cassert>
#include "test_macros.h"
template <class T, template<class> class CompareTemplate>
void do_pointer_comparison_test() {
typedef CompareTemplate<T*> Compare;
typedef CompareTemplate<std::uintptr_t> UIntCompare;
#if TEST_STD_VER > 11
typedef CompareTemplate<void> VoidCompare;
#else
typedef Compare VoidCompare;
#endif
std::vector<std::shared_ptr<T> > pointers;
const std::size_t test_size = 100;
for (size_t i=0; i < test_size; ++i)
pointers.push_back(std::shared_ptr<T>(new T()));
Compare comp;
UIntCompare ucomp;
VoidCompare vcomp;
for (size_t i=0; i < test_size; ++i) {
for (size_t j=0; j < test_size; ++j) {
T* lhs = pointers[i].get();
T* rhs = pointers[j].get();
std::uintptr_t lhs_uint = reinterpret_cast<std::uintptr_t>(lhs);
std::uintptr_t rhs_uint = reinterpret_cast<std::uintptr_t>(rhs);
assert(comp(lhs, rhs) == ucomp(lhs_uint, rhs_uint));
assert(vcomp(lhs, rhs) == ucomp(lhs_uint, rhs_uint));
}
}
}
#endif // POINTER_COMPARISON_TEST_HELPER_HPP
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