6.1 Friend Function (more... example)

#include <iostream>
using namespace std;
class suresh{
    int a;
    public:
    void read(){
        cout<<"Enter value of a ";
        cin>>a;
    }
    friend void display(suresh s1);
};
void display(suresh s1){
    cout<<s1.a;
}
int main()
{
    suresh c1;
    c1.read();
    display(c1);
    return 0;
}