| // -*- 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 |
| // |
| //===----------------------------------------------------------------------===// |
| |
| // Test that _LIBCPP_NODISCARD_AFTER_CXX17 works |
| // #define _LIBCPP_NODISCARD_AFTER_CXX17 [[nodiscard]] |
| |
| // UNSUPPORTED: c++98, c++03, c++11, c++14, c++17 |
| |
| #include <__config> |
| |
| _LIBCPP_NODISCARD_AFTER_CXX17 int foo() { return 6; } |
| |
| int main(int, char**) |
| { |
| foo(); // expected-error {{ignoring return value of function declared with 'nodiscard' attribute}} |
| |
| return 0; |
| } |
