C++ TUTORIALS - C++ References

C++ References

Creating References in C++:

Concept	Description
References as parameters	C++ supports passing references as function parameter more safely than parameters.
Reference as return value	You can return reference from a C++ function like a any other data type can be returned.

Creating References in C++:

int    i = 17;

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int&    r = i;

						
#include <iostream>
 
using namespace std;
 
int main ()
{
   // declare simple variables
   int    i;
   double d;
 
   // declare reference variables
   int&    r = i;
   double& s = d;
   
   i = 5;
   cout << "Value of i : " << i << endl;
   cout << "Value of i reference : " << r  << endl;
 
   d = 11.7;
   cout << "Value of d : " << d << endl;
   cout << "Value of d reference : " << s  << endl;
   
   return 0;
}

						
Value of i : 5
Value of i reference : 5
Value of d : 11.7
Value of d reference : 11.7