5. Types of Inheritance #

Created Sunday 26 April 2020

1. Single Inheritance: A->B

A single link.

2. Multilevel Inheritance: A->B->C…

Multiple levels from the same class. Like an LL.

3. Hierarchical Inheritance:

Multiple base classes from a single class.

4. Multiple Inheritance(inhertiting from multiple base classes) - This is of height 1.

Multiple base classes are inherited by a derived class. Multiple Inheritance is at the core of making ‘new’ things from existing ones.

• We have two types: Chain length, number of parents and number of children.

1. What happens if I create a data member/member function which is present in the base class.
   1. There should be some kind of overridding that takes place.
   2. The parent parts go out of scope, unless called explicitily.(Simplest)
   3. In other words, we look in the nearest scope first. If we need the parents version, we use:

2. What happens if the derived class has two(or more) base classes which have the same data/member member function. **(Multiple inheritance) **
   1. It is ambiguous. We’ll have to *specify *which function to use. Using parent : : fname() Just prepend Parent:: before the data member/member function.
   2. If the inheritance had different modes for different parents, we **still **cannot distinguish between functions as here is no way to access public/private explicitly.