Differential D91292 Diff 308912 libcxx/test/std/containers/container.adaptors/queue/queue.cons/ctor_default.pass.cpp

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libcxx/test/std/containers/container.adaptors/queue/queue.cons/ctor_default.pass.cpp

	//===----------------------------------------------------------------------===//			//===----------------------------------------------------------------------===//
	//			//
	// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.			// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
	// See https://llvm.org/LICENSE.txt for license information.			// See https://llvm.org/LICENSE.txt for license information.
	// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception			// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
	//			//
	//===----------------------------------------------------------------------===//			//===----------------------------------------------------------------------===//

	// <queue>			// <queue>

	// queue();			// explicit queue(Container&& = Container()); // before C++20
				// queue() : queue(Container()) {} // C++20
				// explicit queue(Container&&); // before C++20

	#include <queue>			#include <queue>
	#include <cassert>			#include <cassert>

	#include "test_macros.h"			#include "test_macros.h"
	#include "test_allocator.h"			#include "test_allocator.h"
				#if TEST_STD_VER >= 11
				#include "test_convertible.h"
				#endif

	int main(int, char**)			int main(int, char**)
	{			{
	std::queue<int, std::vector<int, limited_allocator<int, 10> > > q;			typedef std::vector<int, limited_allocator<int, 10> > Container;
				typedef std::queue<int, Container> Q;
				Q q;
	assert(q.size() == 0);			assert(q.size() == 0);
	q.push(1);			q.push(1);
	q.push(2);			q.push(2);
	assert(q.size() == 2);			assert(q.size() == 2);
	assert(q.front() == 1);			assert(q.front() == 1);
	assert(q.back() == 2);			assert(q.back() == 2);

				#if TEST_STD_VER >= 11
				// It should be explicit, so not convertible before C++20.
				static_assert(test_convertible<Q>(), "");
				#endif

	return 0;			return 0;
	}			}