Comments, Tokens, and Best Practices in C (Beginner's Guide)

Comments, Tokens, and Best Practices in C (Beginner's Guide)

Introduction In our last chapter, you wrote your very first "Hello World" program. You communicated directly with the computer, and it responded exactly as you instructed. However, as a software engineer, you are rarely coding just for the machine—you are coding for other humans, too. When you build large applications, your code can grow to thousands of lines. If another developer (or even you, six months later) looks at that code, they need to understand what it does. This is where Comments come in. Furthermore, to truly master C, you must understand the microscopic building blocks that make up your code, known as Tokens . In this guide, we will explore how to write effective comments, break down the six types of C tokens, and look at the industry best practices that separate amateur coders from professionals. What are Comments in C? Comments are notes written in the code for humans to read. When the C compiler runs your program, it completely ignores anything marked as a comment…