47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
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//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// UNSUPPORTED: no-threads
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// UNSUPPORTED: libcpp-has-no-experimental-stop_token
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// XFAIL: availability-synchronization_library-missing
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// [[nodiscard]] bool request_stop() noexcept;
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#include <cassert>
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#include <concepts>
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#include <stop_token>
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#include <thread>
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#include <type_traits>
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#include "make_test_thread.h"
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#include "test_macros.h"
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static_assert(noexcept(std::declval<std::jthread&>().request_stop()));
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int main(int, char**) {
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// Represents a thread
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{
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std::jthread jt = support::make_test_jthread([] {});
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auto st = jt.get_stop_token();
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assert(!st.stop_requested());
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std::same_as<bool> decltype(auto) result = jt.request_stop();
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assert(result);
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assert(st.stop_requested());
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}
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// Does not represent a thread
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{
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std::jthread jt{};
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std::same_as<bool> decltype(auto) result = jt.request_stop();
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assert(!result);
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}
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return 0;
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}
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