1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10// <functional>
11// REQUIRES: c++98 || c++03 || c++11 || c++14
12
13// template<Returnable S, ClassType T>
14//   const_mem_fun_ref_t<S,T>
15//   mem_fun_ref(S (T::*f)() const);
16
17#include <functional>
18#include <cassert>
19
20struct A
21{
22    char a1() {return 5;}
23    short a2(int i) {return short(i+1);}
24    int a3() const {return 1;}
25    double a4(unsigned i) const {return i-1;}
26};
27
28int main()
29{
30    const A a = A();
31    assert(std::mem_fun_ref(&A::a3)(a) == 1);
32}
33