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

Initializing structures and accessing structure elements

Once a structure is defined, we can declare variables of that type. The variables of that structure type must be initialized before use. C gives us a number of ways to do this, depending on the needs of the situation.

Given the definition of struct Card, we can initialize a variable of that type in one of three ways:

  • At the time of declaration: The first way of initializing a structure variable is at declaration time, as follows:
struct Card c1 = { heart , (int) heart , king, (int)king , false };

The structure component values are enclosed between {and }, separated by commas. The order is significant. c1is a card of the heart suit with suitValue of the heart enumeration and face of king with faceValue of the king enumeration, which is not a wildcard. In this form of initialization, we must be careful to get the order exactly correct within the definition of struct Card...