References In C++ | References In C++ Programming | References In C++ Programming Language | References In C++ Example

References In C++

A reference variable is an alias, that is, another name for an already existing variable. Once a reference is initialized with a variable, either the variable name or the reference name may be used to refer to the variable.

Fig: References In C++ 

Creating References in C++

Think of a variable name as a label attached to the variable's location in memory. You can then think of a reference as a second label attached to that memory location. Therefore, you can access the contents of the variable through either the original variable name or the reference.

 

Syntax:

 

Data_type refenece variable variable name; 

 

Example:

int i=18

Reference Example:

int& r=i;