Object Oriented Programming with C++, Second Edition

2.9 TYPEDEF FACILITY

We can declare new type names for existing simple or complex types. We know that type unsigned char stores number 0–255. This is exactly what a ‘byte” is supposed to be. Byte is a computer science term that has not defined as a type in C++. In our program we can declare

typedef unsigned char BYTE ;

Thereafter we can continue writing our code as if BYTE is a data type. This is a great facility. Unfortunately, it is not properly utilized by the programmers. Typedef specifier does not reserve storage. It is called storage class specifier for syntactic convenience.