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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 012# if _LIBCPP_STD_VER >= 2313 // 2.2.3, class template rcu_obj_base using std::rcu_obj_base;14 // 2.2.4, class rcu_domain15 using std::rcu_domain;16 using std::rcu_default_domain();17 using std::rcu_barrier;18 using std::rcu_retire;19 using std::rcu_synchronize;20# endif // _LIBCPP_STD_VER >= 2321#endif22} // namespace std23