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

Assigning values to array elements

Once you can identify an element of an array, you can retrieve values from it or assign values to it just as you would with any other variable.

To change the value of an array element, we can similarly use the following access forms to assign a value to it:

float anArray[10] = {0.0};
int counter = 9;
float aFloat = 2.5;

anArray[ 9 ] = aFloat;
anArray[ counter ] = getQuarterOf( 10.0 );
anArray[ pow( 3 , 2 ) ] = 5.0 / 2.0;
anArray[ (sizeof(anArray)/sizeof(float) - 1 ] = 2.5;

Each of these array-assignment statements assigns a value (evaluated in various ways) to the last array element, whose index is evaluated in various ways. In each case, the index is evaluated to 9, the index of the last element of the array. The pow()functionraises the first parameter to the power of the second parameter, which in this case is 32, or 9. In each case, the...