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++03 || c++11 || c++14
11 // binary_function was removed in C++17
12 
13 // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS
14 
15 // template <class Arg1, class Arg2, class Result>
16 // struct binary_function
17 // {
18 //     typedef Arg1   first_argument_type;
19 //     typedef Arg2   second_argument_type;
20 //     typedef Result result_type;
21 // };
22 
23 #include <functional>
24 #include <type_traits>
25 
26 #include "test_macros.h"
27 
28 int main(int, char**)
29 {
30     static_assert((std::is_same<std::binary_function<int, unsigned, char>::first_argument_type, int>::value), "");
31     static_assert((std::is_same<std::binary_function<int, unsigned, char>::second_argument_type, unsigned>::value), "");
32     static_assert((std::is_same<std::binary_function<int, unsigned, char>::result_type, char>::value), "");
33 
34   return 0;
35 }
36