When should I use virtual functions in C++?

When should I use virtual functions in C++?

You should use virtual functions when you want to achieve polymorphism in your class hierarchy.

Can you explain polymorphism in simple terms?

Polymorphism allows methods to do different things based on the object that it is acting upon, even if they share the same interface.

What are the benefits of using virtual functions?

The main benefits include flexibility in code, easier maintenance, and the ability to extend functionality without modifying existing code.

Are there any downsides to using virtual functions?

Yes, they can introduce a slight performance overhead due to dynamic dispatch and can increase complexity in your class design.