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

A program to test our linked list structure

OK, so we implemented a linked list in C. Or so we think. We wrote a lot of code that we compiled for errors as we wrote it. However, we can't know for certain until we test it. We need to test it thoroughly and get all the results we expect. The testing and verification part of programming is just as important – sometimes even more important – than just writing code that compiles. Writing and verifying the code you write distinguishes a novice programmer from an expert.

Before we can continue, we need two functions specific to our ListData type. The first is as follows:

void PrintInt( int* i )  {
printf( "%2d ", *i );
}

The second is as follows:

ListData* CreateData( ListData d )  {
ListData* pD = (ListData*)calloc( 1 , sizeof( ListData ) );
if( pD == NULL )OutOfStorage();
*pD = d;
return pD;
}

The PrintInt()function simply prints the integer value passed to it by calling...