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 11 12 // Until we drop support for the synchronization library in C++11/14/17 13 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS 14 15 // <semaphore> 16 17 #include <semaphore> 18 #include <thread> 19 20 #include "test_macros.h" 21 22 int main(int, char**) 23 { 24 static_assert(std::counting_semaphore<>::max() >= 1, ""); 25 static_assert(std::counting_semaphore<1>::max() >= 1, ""); 26 static_assert(std::counting_semaphore<std::numeric_limits<int>::max()>::max() >= std::numeric_limits<int>::max(), ""); 27 static_assert(std::counting_semaphore<std::numeric_limits<std::ptrdiff_t>::max()>::max() == std::numeric_limits<ptrdiff_t>::max(), ""); 28 return 0; 29 } 30