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)
Section 1: C Fundamentals
Section 2: Complex Data Types
Section 3: Memory Manipulation
Section 4: Input and Output
Section 5: Building Blocks for Larger Programs

Operating on arrays with loops

When an array is present, a common operation is to iterate over all of its elements. For this, we typically use the for()… loop. We could also use any of the other looping statements described in Chapter 7, Exploring Loops and Iteration. However, because, more often than not, we know the loop's size, it is easier and more reliable to use a counter-controlled for()… loop. When we explore arrays of characters (or strings) in Chapter 15, Working with Strings, we will begin our exploration of sentinel controlled-loops.

To iterate over the array, the index counter is initialized to 0 (to match the zeroth offset), the continuation expression specifies that the index counter remains less than the number of elements, and the index counter is incremented at each iteration. The loop is as follows:

const int kArraySize = 25;
int anArray[ kArraySize ];

for( int i=0 ; i < kArraySize ; i++ ) { // i: 0..24 (kArraySize-1)