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

Introducing enumerations

There are times when we want a program or function variable to take only a limited number of values. For convenience, and to make the purpose of each value clear, each value in the set of possible values is given a name. We can think of this set as a grouping of related values.

Let's say we want a variable to represent the suits of a deck of cards. Naturally, we know each suit by its name—spades, hearts, clubs, and diamonds. But C doesn't know about card names or card suits. If we wanted to represent each of these suits with a value, we could pick any value for each, say, 4 for spades, 3 for hearts, 2 for diamonds, and 1 for clubs. Our program, using this simple scheme, might look as follows:

int card;
card = 3; // Heart.

But we would have to do the work of remembering which value corresponds to which suit. This is an error-prone way of solving this problem.

We could, however, improve that solution by...