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]] id get_id() const noexcept; |
14 | |
15 | #include <cassert> |
16 | #include <concepts> |
17 | #include <thread> |
18 | #include <type_traits> |
19 | |
20 | #include "make_test_thread.h" |
21 | #include "test_macros.h" |
22 | |
23 | static_assert(noexcept(std::declval<const std::jthread&>().get_id())); |
24 | |
25 | int main(int, char**) { |
26 | // Does not represent a thread |
27 | { |
28 | const std::jthread jt; |
29 | std::same_as<std::jthread::id> decltype(auto) result = jt.get_id(); |
30 | assert(result == std::jthread::id()); |
31 | } |
32 | |
33 | // Represents a thread |
34 | { |
35 | const std::jthread jt = support::make_test_jthread([] {}); |
36 | std::same_as<std::jthread::id> decltype(auto) result = jt.get_id(); |
37 | assert(result != std::jthread::id()); |
38 | } |
39 | |
40 | return 0; |
41 | } |
42 |