For Loop

The for loop

The ‘for loop’ is used as a counter-controlled loop, as we can accurately predict the number of iterations.

A ‘for loop’ is a pre-test loop that includes three expressions in its header:

-          Loop initialization statement

-          Limit test expression

-          Loop update statement

‘C’ program allows to updating the loop control statement from within the loop body, even though it is not recommended.

All loops in C program execute as long as a condition is evaluated as true and terminate when the condition is evaluated as false.

Example:

/* Print number series from 1 to user specified limit. */

#include<stdio.h>

int main(void)

{

//local declarations

int limit;

//statement

printf("\Enter the limit:");

scanf("%d",&limit);

printf("\n");

for(int i=1; i<=limit; i++)

printf("%d"\n", i);

return 0;

} //main 

OUTPUT

Enter the limit: 3

1

2

3