#include <iostream.h>
#include <conio.h>
class myclass {
int a, b;
public:
friend int sum(myclass x);
void set_ab(int i, int j);
};
void myclass::set_ab(int i, int j)
{
a = i; b = j;
}
// Note: sum() is not a member
function of any class.
int sum(myclass x)
{
/* Because sum() is a friend of
myclass, it can
irectly access a and b. */
return x.a + x.b;
}
int main()
{
myclass n;
n.set_ab(3, 4);
cout << sum(n);
getch();
return 0;
}
