1// -*- C++ -*- 2//===----------------------------------------------------------------------===// 3// 4// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 5// See https://llvm.org/LICENSE.txt for license information. 6// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 7// 8//===----------------------------------------------------------------------===// 9 10export namespace std { 11#ifndef _LIBCPP_HAS_NO_THREADS 12 // [thread.sema.cnt], class template counting_semaphore 13 using std::counting_semaphore; 14 15 using std::binary_semaphore; 16#endif // _LIBCPP_HAS_NO_THREADS 17} // namespace std 18