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: libcpp-has-no-experimental-stop_token
11 // UNSUPPORTED: c++03, c++11, c++14, c++17
12 // XFAIL: availability-synchronization_library-missing
13
14 // [[nodiscard]] bool joinable() const noexcept;
15 // [[nodiscard]] id get_id() const noexcept;
16 // [[nodiscard]] native_handle_type native_handle();
17 // [[nodiscard]] stop_source get_stop_source() noexcept;
18 // [[nodiscard]] stop_token get_stop_token() const noexcept;
19 // [[nodiscard]] static unsigned int hardware_concurrency() noexcept;
20
21 #include <thread>
22
test()23 void test() {
24 std::jthread jt;
25 jt.joinable(); // expected-warning {{ignoring return value of function}}
26 jt.get_id(); // expected-warning {{ignoring return value of function}}
27 jt.native_handle(); // expected-warning {{ignoring return value of function}}
28 jt.get_stop_source(); // expected-warning {{ignoring return value of function}}
29 jt.get_stop_token(); // expected-warning {{ignoring return value of function}}
30 jt.hardware_concurrency(); // expected-warning {{ignoring return value of function}}
31 }
32