| //===----------------------------------------------------------------------===// |
| // |
| // 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: c++03, c++11, c++14, c++17 |
| |
| // check that <functional> functions are marked [[nodiscard]] |
| |
| #include <functional> |
| |
| #include "test_macros.h" |
| |
| void test() { |
| int i = 0; |
| std::identity()(i); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} |
| } |
