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//===----------------------------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is dual licensed under the MIT and the University of Illinois Open
// Source Licenses. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
// <functional>
// REQUIRES: c++98 || c++03 || c++11 || c++14
// mem_fun1_ref_t
#include <functional>
#include <type_traits>
#include <cassert>
struct A
{
char a1() {return 5;}
short a2(int i) {return short(i+1);}
int a3() const {return 1;}
double a4(unsigned i) const {return i-1;}
};
int main()
{
typedef std::mem_fun1_ref_t<short, A, int> F;
static_assert((std::is_base_of<std::binary_function<A, int, short>, F>::value), "");
const F f(&A::a2);
A a;
assert(f(a, 5) == 6);
}
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