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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-exception7//8//===----------------------------------------------------------------------===//9 10export namespace std {11#if _LIBCPP_HAS_THREADS12 // [thread.sema.cnt], class template counting_semaphore13 using std::counting_semaphore;14 15 using std::binary_semaphore;16#endif // _LIBCPP_HAS_THREADS17} // namespace std18