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
22int 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

source code of libcxx/test/std/thread/thread.semaphore/max.pass.cpp