Thread: static variable result

Code:

#include<stdio.h>

void foo ()
{
	static int i = 0;
	    printf("i = %d \n", i);
	    i = 1;
		printf("i = %d \n", i);	 
	    i = 2;
		printf("i = %d \n", i);	
		i = 3;
		printf("i = %d \n", i);	
}
int main ()
{
	foo ();
	printf("\n");
	foo ();
	return 0;
}

First Call
i = 0
i = 1
i = 2
i = 3

Second Call
i = 3
i = 1
i = 2
i = 3

because of static keyword i become equal to 3. exactly. When code run what happen in program ?