#include <iostream>
using namespace std;

class c1
{
public:
int val;
c1(int i) { val = i; }
int double_val() { return val + val;}
};

int main()
{
int c1::*data;    //data member pointer
int (c1::*func)();    //function member pointer
c1 ob1(1), ob2(2);    //create objects

data = &c1::val;     //get offset of val
func = &c1::double_val;   //get offset of double_val()

cout << "Here are values: " ;
cout << ob1.*data << " " << ob2.*data << endl;

cout << "Here they are doubled: " ;
cout << (ob1.*func)() << " ";
cout << (ob2.*func)() << endl;

return 0;
}