C Foundation

What is C? C Compiler Installation C Extensions C Compiler C Interpreter C Program Structure

C Basics

C Keywords C Data Types C Identifiers C Variables C Constant C Escape Sequences C Constant and Volatile C Typecast


What is Operator C Comma Operator C Arithmetic Operators C Relational Operators C Logical Operators C Bitwise Operators C Conditional Operators C : : Operator C Operator Priority

Basic IO's

Basic IO's C Formatted Functions C Unformatted Functions C Common Functions

Control Statements

What is Control Statement C if Statement C if else Statement C Nested if Statement C Else if Statement C Break Statement C Continue Statement C Switch Statement C Goto Statement


What is Control Loop C for Loop C Nested for Loop C while Loop C Nested while Loop C do while Loop C Nested do while loop


What is Function C User Defined Functions C Recursion C Passing Parameters


Scope C Local Scope C Global Scope

Storage Classes

What is Storage Class C Auto C Extern C Static C Register


What is Array C One Dimensional Array C Two Dimensional Array C Multi Dimensional Array C Arrays Of Strings


What is String C String Functions


What is Pointer C Pointers Arithmetic C Pointer to Pointer C Pointers and Arrays C Pointers and Strings C Pointer to Functions Void Pointers Null Pointers C Null and Void Pointer


What is Structure C Struct within Struct C Array within Structure C Pointer to Structure C Structure and Function C Enum C Bitfield Structure C Type def


What is Union


What is File C read a file C write a file C File Handling C Error Handling C Low Level Disk I/O C Other file functions

Memory Allocation

What is Memory Allocation C Malloc() C Calloc() C Free() C Realloc() C Coreleft()

C Reference

All ASCII Code Basic C Questions

C Interview

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The ones who are crazy enough to think they can change the world are the ones who do.
- Steve Jobs

C Static Storage Class

What Is Static Storage Class

  • A static variable is a variable that tells the compiler to retain the value until the program terminates.
  • They are created once when the function is called, even though the function gets repeated it retains the same value and exists until the program terminates.
  • The default value of static variable is zero(0).
  • The keyword for a variable to declared under static storage class is static
C Static Storage Class

Syntax - Static Storage Class

static int st;

C program - Static Storage Class

Let's workout a program to demonstrate static storage class in C.

#include <stdio.h>
//function declaration
void subfun();
int main()
return 0;
//function definition
void subfun()
static int st = 1;  //static variable declaration
printf("\nst = %d ", st);
  • st = 1
  • st = 2
  • st = 3


The program illustrates that, when the function is called, the static variable inside a function is initialized to 1 and retains the incremented value for the upcoming function calls.


Keyword static
Storage Type Memory
Scope Block Scope
Life Time Static life time
Visibility Local/Global
Default Value 0
Default Storage Class No

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