Differential D47360 Diff 219818 test/libcxx/utilities/utility/mem.res/mem.poly.allocator.class/mem.poly.allocator.mem/db_deallocate.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>

				// template <class T> class polymorphic_allocator

				// T* polymorphic_allocator<T>::deallocate(T*, size_t size)

				int AssertCount = 0;

				#define _LIBCPP_ASSERT(x, m) ((x) ? (void)0 : (void)::AssertCount++)
				#define _LIBCPP_DEBUG 0
				#include <memory_resource>
				#include <type_traits>
				#include <cassert>

				#include "test_std_memory_resource.h"

				namespace ex = std::pmr;

				int main(int, char**)
				{
				using Alloc = ex::polymorphic_allocator<int>;
				using Traits = std::allocator_traits<Alloc>;
				NullResource R;
				Alloc a(&R);
				const std::size_t maxSize = Traits::max_size(a);

				a.deallocate(nullptr, maxSize);
				assert(AssertCount == 0);
				a.deallocate(nullptr, maxSize + 1);
				assert(AssertCount == 1);

				return 0;
				}