C program to count digits of a number using recursion

#include <stdio.h>

//function to count digits

int countDigits(int num)

{

    static int count=0;    

    if(num>0)

    {

        count++;

        countDigits(num/10);

    }

    else

    {

        return count;

    }

}

int main()

{

    int number;

    int count=0;    

    printf("Enter a positive integer number: ");

    scanf("%d",&number);    

    count=countDigits(number); 

    printf("Total digits in number %d is: %d\n",number,count);    

    return 0;

}