What is operator overloading in C++?

What is operator overloading in C++?

Operator overloading allows you to redefine the way operators work for user-defined types in C++. For example, you can define how the '+' operator behaves for a class.

Can you give me an example of operator overloading?

Sure! Here's a simple example: if you have a class Complex for complex numbers, you can overload the '+' operator to add two Complex objects together.

How do I implement operator overloading in my class?

You implement it by defining a function with the keyword 'operator' followed by the operator symbol. For example, Complex operator+(const Complex &other).

Are there any operators that cannot be overloaded?

Yes, some operators like :: (scope resolution), . (member access), and .* (pointer to member) cannot be overloaded.