Storage Classes in C | Types of Storage Classes in C | Static, Auto, Register and Extern Explained
Storage classes in C are keywords that define the scope, lifetime, default initial value, and storage location of variables and functions. They help the compiler determine how to manage memory and the accessibility of a variable during program execution.
There are four primary storage classes in C:
auto: The default for local variables, existing only within the block it is declared in.
register: Suggests storing the variable in a CPU register for faster access, used primarily for performance optimization in critical sections like loop counters.
static: Preserves the value of a variable across multiple function calls and exists for the entire program duration.
extern: Declares a variable or function that is defined in another source file or elsewhere in the program, enabling data sharing between files
Chapters:
00:00 Introduction
00:23 Storage classes
01:48 Auto
04:58 Register
07:03 Static
10:05 Extern
12:23 Comparison
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