libcxx/test/std/thread/thread.mutex/thread.mutex.requirements/thread.mutex.requirements.mutex/thread.mutex.class/default.pass.cpp

   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
  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 }