26 lines · cpp
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-exception6//7//===----------------------------------------------------------------------===//8//9// UNSUPPORTED: no-threads10// UNSUPPORTED: c++03, c++11, c++14, c++1711 12// [[nodiscard]] stop_token get_token() const noexcept;13// [[nodiscard]] bool stop_possible() const noexcept;14// [[nodiscard]] bool stop_requested() const noexcept;15// [[nodiscard]] friend bool operator==(const stop_source& lhs, const stop_source& rhs) noexcept;16 17#include <stop_token>18 19void test() {20 std::stop_source ss;21 ss.get_token(); // expected-warning {{ignoring return value of function}}22 ss.stop_requested(); // expected-warning {{ignoring return value of function}}23 ss.stop_possible(); // expected-warning {{ignoring return value of function}}24 operator==(ss, ss); // expected-warning {{ignoring return value of function}}25}26