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++98 || c++03 || c++11 || c++14
11 // unary_function was removed in C++17
12
13 // template <class Arg, class Result>
14 // struct unary_function
15 // {
16 // typedef Arg argument_type;
17 // typedef Result result_type;
18 // };
19
20 #include <functional>
21 #include <type_traits>
22
23 #include "test_macros.h"
24
main(int,char **)25 int main(int, char**)
26 {
27 static_assert((std::is_same<std::unary_function<unsigned, char>::argument_type, unsigned>::value), "");
28 static_assert((std::is_same<std::unary_function<unsigned, char>::result_type, char>::value), "");
29
30 return 0;
31 }
32