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.sharedmutex.class], class shared_mutex 13 using std::shared_mutex; 14 // [thread.sharedtimedmutex.class], class shared_timed_mutex 15 using std::shared_timed_mutex; 16 // [thread.lock.shared], class template shared_lock 17 using std::shared_lock; 18 using std::swap; 19#endif // _LIBCPP_HAS_NO_THREADS 20} // namespace std 21