1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// UNSUPPORTED: c++03
10
11// <queue>
12
13// explicit queue(Container&& c = Container()); // before C++20
14// queue() : queue(Container()) {} // C++20
15// explicit queue(Container&& c); // C++20
16
17#include <queue>
18#include <cassert>
19
20#include "test_macros.h"
21#include "MoveOnly.h"
22#if TEST_STD_VER >= 11
23#include "test_convertible.h"
24#endif
25
26template <class C>
27C
28make(int n)
29{
30 C c;
31 for (int i = 0; i < n; ++i)
32 c.push_back(MoveOnly(i));
33 return c;
34}
35
36int main(int, char**)
37{
38 typedef std::deque<MoveOnly> Container;
39 typedef std::queue<MoveOnly> Q;
40 Q q(make<std::deque<MoveOnly> >(5));
41 assert(q.size() == 5);
42
43#if TEST_STD_VER >= 11
44 static_assert(!test_convertible<Q, Container&&>(), "");
45#endif
46
47 return 0;
48}
49

source code of libcxx/test/std/containers/container.adaptors/queue/queue.cons/ctor_rcontainer.pass.cpp