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

Changeset View

Standalone View

View Options

libcxx/test/std/containers/container.adaptors/priority.queue/priqueue.cons/ctor_comp_container.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>

	// explicit priority_queue(const Compare& comp, const container_type& c);			// priority_queue(const Compare& comp, const Container& c);

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

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

	template <class C>			template <class C>
	C			C
	make(int n)			make(int n)
	{			{
	C c;			C c;
	for (int i = 0; i < n; ++i)			for (int i = 0; i < n; ++i)
	c.push_back(i);			c.push_back(i);
	return c;			return c;
	}			}

	int main(int, char**)			int main(int, char**)
	{			{
	std::vector<int> v = make<std::vector<int> >(5);			typedef std::vector<int> Container;
	std::priority_queue<int, std::vector<int>, std::greater<int> > q(std::greater<int>(), v);			typedef std::greater<int> Compare;
				typedef std::priority_queue<int, Container, Compare> Q;
				Container v = make<Container>(5);
				Q q(Compare(), v);
	assert(q.size() == 5);			assert(q.size() == 5);
	assert(q.top() == 0);			assert(q.top() == 0);

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

	return 0;			return 0;
	}			}