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 // <stack> 10 11 // explicit stack(Container&& = Container()); // before C++20 12 // stack() : stack(Container()) {} // C++20 13 // explicit stack(Container&&); // before C++20 14 15 #include <stack> 16 #include <vector> 17 #include <cassert> 18 19 #include "test_macros.h" 20 #include "test_allocator.h" 21 #if TEST_STD_VER >= 11 22 #include "test_convertible.h" 23 #endif 24 main(int,char **)25int main(int, char**) 26 { 27 typedef std::vector<int, limited_allocator<int, 10> > Container; 28 typedef std::stack<int, Container> Q; 29 Q q; 30 assert(q.size() == 0); 31 q.push(1); 32 q.push(2); 33 assert(q.size() == 2); 34 assert(q.top() == 2); 35 36 #if TEST_STD_VER >= 11 37 // It should be explicit, so not convertible before C++20. 38 static_assert(test_convertible<Q>(), ""); 39 #endif 40 41 return 0; 42 } 43