Differential D47360 Diff 219818 test/std/utilities/utility/mem.res/mem.res.pool/mem.res.pool.mem/equality.pass.cpp

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				//===----------------------------------------------------------------------===//
				//
				// The LLVM Compiler Infrastructure
				//
				// This file is dual licensed under the MIT and the University of Illinois Open
				// Source Licenses. See LICENSE.TXT for details.
				//
				//===----------------------------------------------------------------------===//

				// UNSUPPORTED: c++98, c++03

				// <memory_resource>

				// class synchronized_pool_resource
				// class unsynchronized_pool_resource

				#include <memory_resource>
				#include <new>
				#include <type_traits>
				#include <cassert>

				#include "count_new.h"

				class assert_on_compare : public std::pmr::memory_resource
				{
				void * do_allocate(size_t, size_t) override
				{ assert(false); }

				void do_deallocate(void *, size_t, size_t) override
				{ assert(false); }

				bool do_is_equal(std::pmr::memory_resource const &) const noexcept override
				{ assert(false); }
				};

				template<class PoolResource>
				void test()
				{
				// Same type
				{
				PoolResource pr1;
				PoolResource pr2;
				assert(pr1 == pr1);
				assert(pr1 != pr2);

				std::pmr::memory_resource & mr1 = pr1;
				std::pmr::memory_resource & mr2 = pr2;
				assert(mr1 == mr1);
				assert(mr1 != mr2);
				assert(mr1 == pr1);
				assert(pr1 == mr1);
				assert(mr1 != pr2);
				assert(pr2 != mr1);
				}
				// Different types
				{
				PoolResource pr1;
				std::pmr::memory_resource & mr1 = pr1;
				assert_on_compare c;
				std::pmr::memory_resource & mr2 = c;
				assert(mr1 != mr2);
				assert(!(mr1 == mr2));
				}
				}

				int main()
				{
				test<std::pmr::synchronized_pool_resource>();
				test<std::pmr::unsynchronized_pool_resource>();
				}