Book Image

Learn C Programming. - Second Edition

By : Jeff Szuhay
Book Image

Learn C Programming. - Second Edition

By: Jeff Szuhay

Overview of this book

The foundation for many modern programming languages such as C++, C#, JavaScript, and Go, C is widely used as a system programming language as well as for embedded systems and high-performance computing. With this book, you'll be able to get up to speed with C in no time. The book takes you through basic programming concepts and shows you how to implement them in the C programming language. Throughout the book, you’ll create and run programs that demonstrate essential C concepts, such as program structure with functions, control structures such as loops and conditional statements, and complex data structures. As you make progress, you’ll get to grips with in-code documentation, testing, and validation methods. This new edition expands upon the use of enumerations, arrays, and additional C features, and provides two working programs based on the code used in the book. What's more, this book uses the method of intentional failure, where you'll develop a working program and then purposely break it to see what happens, thereby learning how to recognize possible mistakes when they happen. By the end of this C programming book, you’ll have developed basic programming skills in C that can be easily applied to other programming languages and have gained a solid foundation for you to build on as a programmer.
Table of Contents (37 chapters)
1
Part 1: C Fundamentals
10
Part 2: Complex Data Types
19
Part 3: Memory Manipulation
22
Part 4: Input and Output
28
Part 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 )  {
  case constant-1 :    statement-1
  case constant-2 :    statement-2
  …
  case constant-n :    statement-n
  default :            statement-default
}

Here, the expression evaluates a single result...