| 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 | |
| 24 | static_assert(noexcept(std::declval<std::jthread&>().get_stop_source())); |
| 25 | |
| 26 | int 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 |