C + + overloading and rewriting

Overloading and rewriting are two concepts that are completely different and have no relationship with each other. Two

1. Overloading: Overloads occur in the same scope with two or more functions having the same function name but different signatures .

2, rewrite: Overrides occur in derived class functions and base class virtual functions have the same function name and sign name.

Signature: The parameter type of the function, the number of arguments, and the type of the return value.

C + + overloading and rewriting