// { dg-options "-std=gnu++0x" }// { dg-do compile}// Copyright (C) 2011 Free Software Foundation, Inc.//// This file is part of the GNU ISO C++ Library. This library is free// software; you can redistribute it and/or modify it under the// terms of the GNU General Public License as published by the// Free Software Foundation; either version 2, or (at your option)// any later version.//// This library is distributed in the hope that it will be useful,// but WITHOUT ANY WARRANTY; without even the implied warranty of// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the// GNU General Public License for more details.//// You should have received a copy of the GNU General Public License along// with this library; see the file COPYING. If not, write to the Free// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,// USA.// 20.6.4 function object return types [func.ret]#include <functional>struct X{int f(int) { return 0; }int i;};void test01(){typedef int (X::*mfp)(int);typedef int X::*mp;mfp m = &X::f;mp m2 = &X::i;X x = { };std::ref(m)(x, 1);std::ref(m)(&x, 1);int& i1 = std::ref(m2)(x);int& i2 = std::ref(m2)(&x);}int main(){test01();return 0;}