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

Introducing an array of pointers to arrays

Before finishing this chapter, it is worth introducing the concept of an array of pointers to arrays. This may be thought of as an alternate two-dimensional array. Such an array is somewhat different in memory than the standard arrays that we have so far encountered. Even though its memory representation is different, we access this alternate array in exactly the same way as we would a standard two-dimensional array. Therefore, some caution is required when traversing the two kinds of arrays.

We declare a standard two-dimensional array in the following way:

int arrayStd[3][5];

We have allocated a contiguous and inseparable block of 15 integers, which has three rows of five integers. Our conceptual memory picture of this is a single block referenced via a single name, arrayStd, as follows:

To declare an alternate two-dimensional array using arrays of pointers, we would do the...