1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8//
9// UNSUPPORTED: no-threads
10// UNSUPPORTED: c++03, c++11, c++14, c++17
11// XFAIL: availability-synchronization_library-missing
12
13// [[nodiscard]] stop_source get_stop_source() noexcept;
14
15#include <cassert>
16#include <concepts>
17#include <stop_token>
18#include <thread>
19#include <type_traits>
20
21#include "make_test_thread.h"
22#include "test_macros.h"
23
24static_assert(noexcept(std::declval<std::jthread&>().get_stop_source()));
25
26int main(int, char**) {
27 // Represents a thread
28 {
29 std::jthread jt = support::make_test_jthread([] {});
30 std::same_as<std::stop_source> decltype(auto) result = jt.get_stop_source();
31 assert(result.stop_possible());
32 }
33
34 // Does not represents a thread
35 {
36 std::jthread jt{};
37 std::same_as<std::stop_source> decltype(auto) result = jt.get_stop_source();
38 assert(!result.stop_possible());
39 }
40
41 return 0;
42}
43

source code of libcxx/test/std/thread/thread.jthread/get_stop_source.pass.cpp