Loops in C
C has three loop statements:
- while
- for
- do-while
while and for are pre-test loops, do-while may be a post-test loop. All three loops continue when the condition is true and terminates when it is false.
While Loop
The while loop is a pre-test loop. It tests the condition before every iteration of the loop.
Syntax:
while (condition)
{
statements(s);
}
Example Program:
To print first ‘n’ natural numbers.
#include<stdio.h>
void main()
{
int i=1,n;
printf("Enter limit\n");
scanf("%d",&n);
while (i<=n)
{
printf("%d\t", i);
i++;
}
printf("end of the program");
}
Output:
