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// mem_fun1_ref_t 14 15#include <functional> 16#include <type_traits> 17#include <cassert> 18 19struct A 20{ 21 char a1() {return 5;} 22 short a2(int i) {return short(i+1);} 23 int a3() const {return 1;} 24 double a4(unsigned i) const {return i-1;} 25}; 26 27int main() 28{ 29 typedef std::mem_fun1_ref_t<short, A, int> F; 30 static_assert((std::is_base_of<std::binary_function<A, int, short>, F>::value), ""); 31 const F f(&A::a2); 32 A a; 33 assert(f(a, 5) == 6); 34} 35