Book Image

Extreme C

By : Kamran Amini
5 (1)
Book Image

Extreme C

5 (1)
By: Kamran Amini

Overview of this book

There’s a lot more to C than knowing the language syntax. The industry looks for developers with a rigorous, scientific understanding of the principles and practices. Extreme C will teach you to use C’s advanced low-level power to write effective, efficient systems. This intensive, practical guide will help you become an expert C programmer. Building on your existing C knowledge, you will master preprocessor directives, macros, conditional compilation, pointers, and much more. You will gain new insight into algorithm design, functions, and structures. You will discover how C helps you squeeze maximum performance out of critical, resource-constrained applications. C still plays a critical role in 21st-century programming, remaining the core language for precision engineering, aviations, space research, and more. This book shows how C works with Unix, how to implement OO principles in C, and fully covers multi-processing. In Extreme C, Amini encourages you to think, question, apply, and experiment for yourself. The book is essential for anybody who wants to take their C to the next level.
Table of Contents (23 chapters)

Polymorphism

Polymorphism is not really a relationship between two classes. It is mostly a technique for keeping the same code while having different behaviors. It allows us to extend code or add functionalities without having to recompile the whole code base.

In this section, we try to cover what polymorphism is and how we can have it in C. This also gives us a better view of how modern programming languages such as C++ implement polymorphism. We'll start by defining polymorphism.

What is polymorphism?

Polymorphism simply means to have different behaviors by just using the same public interface (or set of behavior functions).

Suppose that we have two classes, Cat and Duck, and they each have a behavior function, sound, which makes them print their specific sound. Explaining polymorphism is not an easy task to do and we'll try to take a top-down approach in explaining it. First, we'll try to give you an idea of how polymorphic code looks...