Explain by details operator overloading in C+ + with example

Operator overloading is used to extend the functionality of an operator like + (addition), - (subtraction), / (Division), * (Multiplication).

Syntax for operator overloading inside the class : -

You have to use operator keyword.

Function

return type operator (arguments)

{

---code

}

suppose you want to extend the functionality of + + operator for any integer so that it increases the value by two.

void operator + + (int &a)

{

a=a+2;

}

So whenever this operator is used with an argument it will increase the value to that argument by 2.

int a=5;

+ + (a);

a will become 7;