Tutorial 17 : Storage Classes in C Explained 🔍 | auto, static, extern, register |
In this tutorial, learn everything about Storage Classes in C — one of the most important topics for understanding variable scope, lifetime, and visibility in your C programs. 💡
We’ll clearly explain the four main storage classes with real C examples 👇
✅ auto — default local storage
✅ static — preserves value between function calls
✅ extern — access global variables across files
✅ register — stores variables in CPU for faster access
📚 What You’ll Learn:
What are storage classes in C
Scope and lifetime of variables
Real code examples with output
Difference between static and extern
How storage affects program memory
💻 Perfect for beginners preparing for C exams, interviews, or university lab work.