1*b77e50e6SHui //===----------------------------------------------------------------------===// 2*b77e50e6SHui // 3*b77e50e6SHui // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 4*b77e50e6SHui // See https://llvm.org/LICENSE.txt for license information. 5*b77e50e6SHui // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 6*b77e50e6SHui // 7*b77e50e6SHui //===----------------------------------------------------------------------===// 8*b77e50e6SHui // 9*b77e50e6SHui // UNSUPPORTED: no-threads 10*b77e50e6SHui // UNSUPPORTED: c++03, c++11, c++14, c++17 11*b77e50e6SHui // XFAIL: availability-synchronization_library-missing 12*b77e50e6SHui 13*b77e50e6SHui // template<class Callback> 14*b77e50e6SHui // stop_callback(stop_token, Callback) -> stop_callback<Callback>; 15*b77e50e6SHui 16*b77e50e6SHui #include <stop_token> 17*b77e50e6SHui #include <type_traits> 18*b77e50e6SHui #include <utility> 19*b77e50e6SHui 20*b77e50e6SHui void test() { 21*b77e50e6SHui std::stop_token st; 22*b77e50e6SHui auto a = [] {}; 23*b77e50e6SHui static_assert(std::is_same_v<decltype(std::stop_callback(st, a)), std::stop_callback<decltype(a)>>); 24*b77e50e6SHui static_assert(std::is_same_v<decltype(std::stop_callback(st, std::as_const(a))), std::stop_callback<decltype(a)>>); 25*b77e50e6SHui static_assert(std::is_same_v<decltype(std::stop_callback(st, std::move(a))), std::stop_callback<decltype(a)>>); 26*b77e50e6SHui static_assert( 27*b77e50e6SHui std::is_same_v<decltype(std::stop_callback(st, std::move(std::as_const(a)))), std::stop_callback<decltype(a)>>); 28*b77e50e6SHui } 29