477f6bc407
There are discussions about different ways of implementing `stop_token` to make it more performant mark `stop_token` as experimental to allow us to change the design before it is shipped Co-authored-by: Louis Dionne <ldionne.2@gmail.com> Differential Revision: https://reviews.llvm.org/D154700
53 lines
1.2 KiB
C++
53 lines
1.2 KiB
C++
//===----------------------------------------------------------------------===//
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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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// void swap(stop_token& rhs) 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 <type_traits>
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#include "test_macros.h"
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template <class T>
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concept IsNoThrowMemberSwappable = requires(T& t) {
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{ t.swap(t) } noexcept;
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};
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static_assert(IsNoThrowMemberSwappable<std::stop_token>);
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int main(int, char**) {
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{
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std::stop_token st1;
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std::stop_source source;
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auto st2 = source.get_token();
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assert(st1 != st2);
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source.request_stop();
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assert(!st1.stop_requested());
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assert(st2.stop_requested());
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st1.swap(st2);
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assert(st1 != st2);
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assert(st1.stop_requested());
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assert(!st2.stop_requested());
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}
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return 0;
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}
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