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