What are the common mistakes in C++ overloading and overriding?

What are the common mistakes in C++ overloading and overriding?

Some common mistakes include not considering const correctness, ignoring function signatures, and misusing virtual functions.

Can you explain what const correctness means in this context?

Const correctness ensures that methods that do not modify the object are marked as const, preventing unintended changes.

What about function signatures? How can they lead to mistakes?

Function signatures must match exactly for overloading to work. Differences in constness or reference types can cause issues.

What are virtual functions and how do they relate to overriding?

Virtual functions allow derived classes to override base class methods. Mistakes occur when not declaring them as virtual.

Can you give an example of a mistake involving virtual functions?

Sure! If a base class method is not declared virtual, the derived class's override won't be called, leading to unexpected behavior.