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# ifdef _LIBCPP_ENABLE_EXPERIMENTAL 13 // [stoptoken], class stop_token 14 using std::stop_token; 15 16 // [stopsource], class stop_source 17 using std::stop_source; 18 19 // no-shared-stop-state indicator 20 using std::nostopstate; 21 using std::nostopstate_t; 22 23 // [stopcallback], class template stop_callback 24 using std::stop_callback; 25# endif // _LIBCPP_ENABLE_EXPERIMENTAL 26#endif // _LIBCPP_HAS_NO_THREADS 27} // namespace std 28