Reference Variable

Reference Variable act as Pointer like function we work in C programming.  

/*Reference Variable: Data type and VariableName*/

#include<iostream>

using namespace std;

void display(int& a){

a=667;

}

int main(){

int b;

display(b);

cout<<b;

return 0;}

This is Similar to the Function

void display(int *a) {

*a=67;}

display(&b);