Book Image

Learn C Programming

By : Jeff Szuhay
Book Image

Learn C Programming

By: Jeff Szuhay

Overview of this book

C is a powerful general-purpose programming language that is excellent for beginners to learn. This book will introduce you to computer programming and software development using C. If you're an experienced developer, this book will help you to become familiar with the C programming language. This C programming book takes you through basic programming concepts and shows you how to implement them in C. Throughout the book, you'll create and run programs that make use of one or more C concepts, such as program structure with functions, data types, and conditional statements. You'll also see how to use looping and iteration, arrays, pointers, and strings. As you make progress, you'll cover code documentation, testing and validation methods, basic input/output, and how to write complete programs in C. By the end of the book, you'll have developed basic programming skills in C, that you can apply to other programming languages and will develop a solid foundation for you to advance as a programmer.
Table of Contents (33 chapters)
1
Section 1: C Fundamentals
10
Section 2: Complex Data Types
19
Section 3: Memory Manipulation
22
Section 4: Input and Output
28
Section 5: Building Blocks for Larger Programs

Linked list structures

It should be no surprise from our diagram of a linked list that we need two structures – a linked list header structure and a list node structure. These are defined as follows:

typedef struct _Node ListNode;
typedef struct _Node {
ListNode* pNext;
ListData* pData;
} ListNode;

typedef struct {
ListNode* pFirstNode;
intnodeCount;
} LinkedList;

First, we define an arbitrary tag, struct _Node, as a ListNode structure. This is a naming mechanism so that we can use the name ListNode in the following structure definition with the members of struct _Node. The struct _Node tag contains a ListNode pointer and a ListData pointer, both of which will be known henceforth as simple ListNode custom types. We won't need to use struct _Node again. Our list will consist of zero or more ListNode.

Next, we define a heading for our linked list, LinkedList, which consists of a ListNode pointer and an int element to keep track of the number...