Files
clang-p2996/libcxx/test/std/thread/thread.stoptoken/stopsource/nodiscard.verify.cpp
Hui 477f6bc407 [libc++] Make stop_token experimental
There are discussions about different ways of implementing `stop_token` to make it more performant
mark `stop_token` as experimental to allow us to change the design before it is shipped

Co-authored-by: Louis Dionne <ldionne.2@gmail.com>

Differential Revision: https://reviews.llvm.org/D154700
2023-07-11 08:52:31 -04:00

28 lines
1.2 KiB
C++

//===----------------------------------------------------------------------===//
//
// 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: libcpp-has-no-experimental-stop_token
// UNSUPPORTED: c++03, c++11, c++14, c++17
// XFAIL: availability-synchronization_library-missing
// [[nodiscard]] stop_token get_token() const noexcept;
// [[nodiscard]] bool stop_possible() const noexcept;
// [[nodiscard]] bool stop_requested() const noexcept;
// [[nodiscard]] friend bool operator==(const stop_source& lhs, const stop_source& rhs) noexcept;
#include <stop_token>
void test() {
std::stop_source ss;
ss.get_token(); // expected-warning {{ignoring return value of function}}
ss.stop_requested(); // expected-warning {{ignoring return value of function}}
ss.stop_possible(); // expected-warning {{ignoring return value of function}}
operator==(ss, ss); // expected-warning {{ignoring return value of function}}
}