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

Naming constant variables

C makes no distinction between a variable identifier and a constant identifier. However, it is often useful to know whether the identifier you are using is a constant.

As with functions and variables, there are several conventions commonly used for naming constants. The following conventions are relatively common to arbitrarily differentiate constants from variables:

  • Prefix a constant name with k or k_—for example, kInchesPerFoot or k_inches_per_foot.
  • Suffix a name with const or _const—for example, inchesPerFootConst or inches_per_foot_const.
  • Use snake-case with all the capitals—for example, THIS_IS_A_CONSTANT. All-uppercase is quite unreadable. This is typically used for the #define symbols to show that they are not just a constant—for example, INCHES_PER_FOOT.
  • None. C does not distinguish between constants—for example, int inchesPerFoot versus const int inchesPerFoot...