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
11 // template<cReturnable S, ClassType T>
12 // const_mem_fun_t<S,T>
13 // mem_fun(S (T::*f)() const);
14 // Removed in c++17
15 // UNSUPPORTED: c++03, c++11, c++14
16
17 #define _LIBCPP_DISABLE_DEPRECATION_WARNINGS
18
19 #include <functional>
20 #include <cassert>
21
22 #include "test_macros.h"
23
24 struct A
25 {
a1A26 char a1() {return 5;}
a2A27 short a2(int i) {return short(i+1);}
a3A28 int a3() const {return 1;}
a4A29 double a4(unsigned i) const {return i-1;}
30 };
31
main(int,char **)32 int main(int, char**)
33 {
34 const A a = A();
35 assert(std::mem_fun(&A::a3)(&a) == 1);
36
37 return 0;
38 }
39