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Mark LWG issue 2450 as complete.

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git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@271473 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Fiselier
2016-06-02 03:12:44 +00:00
parent d25628018b
commit 400d356341
8 changed files with 81 additions and 7 deletions
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39
test/std/utilities/function.objects/comparisons/pointer_comparison_test_helper.hpp Normal file
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@@ -0,0 +1,39 @@
#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 (int i=0; i < test_size; ++i)
pointers.push_back(std::shared_ptr<T>(new T()));
Compare comp;
UIntCompare ucomp;
VoidCompare vcomp;
for (int i=0; i < test_size; ++i) {
for (int 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