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

Initializing arrays

As with all variables, it is important to initialize array elements to some known value before using them. Just as with structures, as we saw in Chapter 9, Creating and Using Structures, we can initialize an array in several different ways.

The most basic way to initialize an array is to set all of its values to the same value at the time of definition. We set all the array elements to the same value as follows:

int anArray[10] = {0};
double wheelTread[ getNumberOfWheels( tricycle ) ] = { 1.5 };

All the values of each array are set to the same value given within { and }. All 10 values of anArray are set to 0. All three values of wheelTread are set to 1.5. However, we could have set them all to a constant value, a variable, or the result of an expression. We can change the value of each element as needed later.

To set each element to different values during initialization, each element's value can be specified between {...