CodeTheta

This C program uses sumdig() function to calculate sum of a digits.It takes num integer variable as a argument. Main function uses two variable called "a" and "num" and sumdig() function uses num variable and at last program will calculate and return "sum" variable.

/* Sum Of The Digits Using Function In C Program*/
/* http://native-code.blogspot.com */
#include<stdio.h>
#include<conio.h>
void main()
{
int a,num;
clrscr();
printf("/* - - - - - http://native-code.blogspot.com - - - - -*/");
printf("\n\n\t Enter a Number : ");
scanf("%d",&num);
a=sumdig(num);
printf("/* - - - - - http://native-code.blogspot.com - - - - -*/");
printf("\n\n\t Sum Of The Digits Is: %d",a);
getch();
}
sumdig(int num)
{
static int sum;
int a,b;
a=num%10;
b=(num-a)/10;
sum=sum+a;
if(b!=0)
sumdig(b);
else
return(sum);
}
/* http://native-code.blogspot.com */

IDE Used To Test This Code : Turbo C

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