libcxx/test/std/thread/thread.semaphore/max.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 // UNSUPPORTED: c++03, c++11, c++14, c++17
  11
  12 // <semaphore>
  13
  14 #include <cstddef>
  15 #include <semaphore>
  16
  17 int main(int, char**)
  18 {
  19   static_assert(std::counting_semaphore<>::max() >= 1, "");
  20   static_assert(std::counting_semaphore<1>::max() >= 1, "");
  21   static_assert(std::counting_semaphore<std::numeric_limits<int>::max()>::max() >= std::numeric_limits<int>::max(), "");
  22   static_assert(std::counting_semaphore<std::numeric_limits<std::ptrdiff_t>::max()>::max() == std::numeric_limits<ptrdiff_t>::max(), "");
  23   return 0;
  24 }