Program to illustrate the concept of friend function in a class.

#include<iostream>
using namespace std;
class a{
public:
int b;
friend void fnc(a A);
void set();
};
void a::set(){
cout<<"Enter a number : ";
cin>>b;
}
void fnc(a A){
cout<<"a = "<<A.b<<endl;
}

int main(){
a A;
A.set();
fnc(A);
    cout<<"/*\nName-Sanjampreet Singh\nRoll Number-1507967\n*/";
}

Output:


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