Animated Gif of Pass by Reference & Value C++ pass by Reference & value There is two way of accessing values of variables and passing values in function argument, first one is pass by value and second one is pass by reference . Reference variable is another name for a existing variable. Once a reference variable is initialized the reference name may be used to refer to the variable. A reference must be initialized when it is created.You can't have NULL references. You must always be able to assume that a reference is connected to a legitimate piece of storage.Once a reference is initialized to an object, it cannot be changed to refer to another object. & operator use to declare reference variable which is use to store variable value, you can access the value of the variable by using original variable name or by using the reference variable. Syntax of Reference variable is very simple //variable initialization int vari = 10; //sim...
Information Technology Taleem
Comments
Post a Comment