Storage Class

Storage class is modifier or qualifier of data type. it will decide

• In which area of memory a variable will be stored.
• Scope of the variable.
• visibility/availability of variable.

Memory Section

In which memory area variable will get memory.

Variable Scope

Scope of variable means whether variable is avalible or not avalible for any operation within a boundry.

There are 4 diffrent types of scope

1. Block Scope: Area between curly bracket.
2. Function Scope: Function scope means function definition area.
3. File Scope: File Area
4. Program Scope: Whole program.

Variable Visibility

Visiblity of an variable means Accessibility of variable. upto which part or area of a program, we can access a variable.

Types of Storage Class

There are 4 types of storage class in c

1. auto
2. register
3. static
4. extern

Scope and Visiblity of storage class

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