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

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()
{
subfun();
subfun();
subfun();
return 0;
}
//function definition
void subfun()
{
static int st = 1;  //static variable declaration
printf("\nst = %d ", st);
st++;
}

Reference

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