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 a switch()… complex statement

With the if()… else… statement, the conditional expression evaluates to only one of two values—true or false. But what if we had a single result that could have multiple values, with each value requiring a different bit of code execution?

For this, we have the switch()… statement. This statement evaluates an expression to a single result and selects a pathway where the result matches the known values that we care about.

The syntax of the switch()… statement is as follows:

switch(expression)  {
caseconstant-1 :statement-1
caseconstant-2 :statement-2

caseconstant-n :statement-n
default : statement-default

Here, the expression evaluates to a single result. The next part of the statement is called the case-statement block, which contains one or more case clauses and an optional default: clause. In the case-statement block, the result is compared to each of...