//===----------------------------------------------------------------------===// // // 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++03 // UNSUPPORTED: (c++11 || c++14 || c++17) && !stdlib=libc++ #include <__config> _LIBCPP_NODISCARD_AFTER_CXX17 int foo() { return 6; } void f() { foo(); // expected-warning {{ignoring return value of function declared with 'nodiscard' attribute}} }