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
17std::unary_function<int, int> u; // expected-warning {{'unary_function<int, int>' is deprecated}}
18

source code of libcxx/test/std/depr/depr.function.objects/depr.base/unary_function.depr.verify.cpp