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
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

source code of libcxx/test/std/containers/container.adaptors/stack/stack.cons/ctor_default.pass.cpp