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-exception 6 // 7 //===----------------------------------------------------------------------===// 8 9 // <functional> 10 // REQUIRES: c++11 || c++14 11 // unary_function was removed in C++17 12 13 // check that unary_function is marked deprecated 14 15 #include <functional> 16 17 std::unary_function<int, int> u; // expected-warning {{'unary_function<int, int>' is deprecated}} 18