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

Using enumerations

We have defined a new type with a specified set of values. To assign values of that type to a variable, we now have to define a variable using our new enumerated type.

Declaring a variable of type enum suit would be done as follows:

enum suit card;
card = spade;
if( card == club ) ...
else if( card == diamond ) ...
else if( card == heart ) ...
else if( card == spade ) ...
printf( "Unknown enumerated value\n" );

Since card is an enumerated type, it cannot take any value other than those specified in the type. To do so would cause a compiler error. You will notice in the preceding code snippet that we check for any enumerated value outside of our known set of values. This is actually not required for a simple card suit example; is there a deck of cards with more than 4 suits? I think not. Is it likely then, that our set of enumerations would change? Also not likely. Furthermore, card as an enumerated type...