C++ Programming - References - Discussion

@All.

According to me, the coding part is;

#include <iostream>
using namespace std;
int main()
{
int x=20,a=10;
int &b=a;
cout<<"\n\n Value of b = "<<b;
b=x;
cout<<"\n\n Value of b = "<<b;
cout<<"\n\n Value of a = "<<a;

cout<<"\n\n address of b = "<<&b;
cout<<"\n\n address of a = "<<&a;
cout<<"\n\n address of x = "<<&x;

return 0;
}

How? Explain in detail.

@Arko.

It is a eference to the same variable only the value stored is changing.

Option B is also correct.(According to this working code)

#include<iostream.h>
int main()
{
int x=20,a=10;
int &b=a;
cout<<"\n\n Value of b = "<<b;
b=x;
cout<<"\n\n Value of b = "<<b;
return 0;
}

OUTPUT:

Value of b = 10.
Value of b = 20.

Hence, "Once a reference variable(variable 'b' in this case) has been defined to refer to a particular variable(variable 'a') it can refer to any other variable(variable'x')." - is TRUE!.