Book Image

Learn C Programming - Second Edition

By : Jeff Szuhay
Book Image

Learn C Programming - Second Edition

By: Jeff Szuhay

Overview of this book

The foundation for many modern programming languages such as C++, C#, JavaScript, and Go, C is widely used as a system programming language as well as for embedded systems and high-performance computing. With this book, you'll be able to get up to speed with C in no time. The book takes you through basic programming concepts and shows you how to implement them in the C programming language. Throughout the book, you’ll create and run programs that demonstrate essential C concepts, such as program structure with functions, control structures such as loops and conditional statements, and complex data structures. As you make progress, you’ll get to grips with in-code documentation, testing, and validation methods. This new edition expands upon the use of enumerations, arrays, and additional C features, and provides two working programs based on the code used in the book. What's more, this book uses the method of intentional failure, where you'll develop a working program and then purposely break it to see what happens, thereby learning how to recognize possible mistakes when they happen. By the end of this C programming book, you’ll have developed basic programming skills in C that can be easily applied to other programming languages and have gained a solid foundation for you to build on as a programmer.
Table of Contents (37 chapters)
Part 1: C Fundamentals
Part 2: Complex Data Types
Part 3: Memory Manipulation
Part 4: Input and Output
Part 5: Building Blocks for Larger Programs

Preface to the Second Edition

In the Preface to the First Edition, I stated that "you will find a particular way to make C work for you." I must admit that I myself was a victim of this trap. It turns out that because I had learned C before 1990, I was not as familiar with important C99 features as I should have been. I was guilty of thinking with my older C version habits. This outdated thinking was reflected largely in the chapter on enumerations and especially in the chapter introducing arrays, where Variable-Length Arrays (VLAs) – a major feature of C99 – were poorly covered. Both of these chapters have been completely rewritten to accurately represent the C standard.

I especially want to thank readers who pointed out the various text and source code typos. I understand how frustrating it can be when the code you use from the book just won't work. For this reason, extra attention has been given to the source code in the book and the example programs in the repository.

This edition corrects those typographical errors both in the text and in the sample code. It also corrects some conceptual errors that were either poorly described or just plain wrong. I offer my sincerest apologies to the readers of that edition. Any errors that remain are purely my responsibility.

This edition, as much as possible, provides some hints as to what is to come in the next version of the C standard – C23. These are added refinements that do not change the core of C but extend the clarity and usefulness of C.

Another addition to this version is the questions at the end of each chapter to reinforce the key concepts of that chapter. These should prove to be especially useful to programming beginners.

Finally, Chapter 27 has been added, which implements two complete yet simple card games. These demonstrate how to use pre-built structures and functions as well as how to employ a library, in this case. our own linked list library, for added functionality.