24 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]] bool stop_requested() const noexcept;13// [[nodiscard]] bool stop_possible() const noexcept;14// [[nodiscard]] friend bool operator==(const stop_token& lhs, const stop_token& rhs) noexcept;15 16#include <stop_token>17 18void test() {19 std::stop_token st;20 st.stop_requested(); // expected-warning {{ignoring return value of function}}21 st.stop_possible(); // expected-warning {{ignoring return value of function}}22 operator==(st, st); // expected-warning {{ignoring return value of function}}23}24