2 Rationale

This module deals with certain concepts that are somewhat advanced in object oriented programming. The necessity of the these topics arises in many different types of applications.

For example, there is no efficient built-in data structure to represent an array of booleans. Yes, C++ does have the built-in type of bool (Boolean). However, the size of a bool variable is at least one byte. This is very inefficient, as a Boolean value should only take a single bit to represent.