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


Variables are the means by which we store values and their associated types. Variables are identified by a given name. Variable declarations allocate memory for the lifetime of the variable. This depends on where the variable is declared. Variables declared within a block, { and }, only exist while that block is executing. There are variables whose values can change while the program executes, constant variables whose values do not change once they are given a value, and literal values that never change.

Variables are declared with explicit types. However, the type of a value can be implicitly inferred by how it is used. Literal values are constants whose type is inferred both by how they appear and how they are used.

The only way to change the value of a variable is by assigning a value to it. Initialization is the means of giving a variable or constant a value when it is declared. Otherwise, the value of variables can only change through direct assignment...