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 26 template <class C> 27 C make(int n)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 main(int,char **)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