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: no-threads
10 
11 // <mutex>
12 
13 // class mutex;
14 
15 // mutex();
16 
17 #include <mutex>
18 #include <type_traits>
19 
20 #include "test_macros.h"
21 
main(int,char **)22 int main(int, char**)
23 {
24   static_assert(std::is_nothrow_default_constructible<std::mutex>::value, "");
25   std::mutex m;
26   ((void)m);
27   return 0;
28 }
29