libcxx/test/std/thread/thread.semaphore/ctor.verify.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 // UNSUPPORTED: c++03, c++11, c++14, c++17
  11
  12 // <semaphore>
  13
  14 #include <semaphore>
  15
  16 void not_positive() {
  17   std::counting_semaphore<-1> s(2); // expected-error-re@*:* {{static assertion failed{{.*}}The least maximum value must be a positive number}}
  18   (void)s;
  19 }