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

Exploring logical and relational operators

Early versions of C did not have explicit boolean (true, false) data types. To handle boolean values, C implicitly converts any zero value into the boolean false value and implicitly converts any nonzero value into the boolean true value. This implicit conversion comes in handy very often but must be used with care.

However, when we use #include <stdbool.h>, the official booltypes and true and falsevalues are available to us. We will explore later how we might choose to define our own boolean values with enumerations (Chapters 9, Creating and Using Structures) or with custom types (Chapter 11, Working with Arrays).

There are three boolean operators:

  • ||: The binary logical OR operator
  • &&: The binary logical AND operator
  • !: The unary logical NOT operator

These are logical operators whose results are always boolean true (nonzero) or false (exactly zero...