| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // <mutex> |
| |
| // struct once_flag; |
| |
| // constexpr once_flag() noexcept; |
| |
| #include <mutex> |
| #include "test_macros.h" |
| |
| int main(int, char**) |
| { |
| { |
| std::once_flag f; |
| (void)f; |
| } |
| #if TEST_STD_VER >= 11 |
| { |
| constexpr std::once_flag f; |
| (void)f; |
| } |
| #endif |
| |
| return 0; |
| } |