libcxx/test/std/thread/thread.mutex/thread.once/thread.once.onceflag/copy.compile.fail.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 // struct once_flag;
  14
  15 // once_flag(const once_flag&) = delete;
  16
  17 #include <mutex>
  18
  19 int main(int, char**)
  20 {
  21     std::once_flag f;
  22     std::once_flag f2(f);
  23
  24   return 0;
  25 }