// -*- C++ -*-
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
export namespace std {
#ifndef _LIBCPP_HAS_NO_THREADS
// [thread.sharedmutex.class], class shared_mutex
using std::shared_mutex;
// [thread.sharedtimedmutex.class], class shared_timed_mutex
using std::shared_timed_mutex;
// [thread.lock.shared], class template shared_lock
using std::shared_lock;
using std::swap;
#endif // _LIBCPP_HAS_NO_THREADS
} // namespace std