Sort Test (C)

#include <stdio.h>

int bubbleSort(int *, int);

#include "sort.c"

int main(void){
   int len = 5;
   int array[5] = {9,2,8,6,3};
   int r,i;
   r = bubbleSort(array, len);
   for (i=0; i<len; i=i+1){
      printf("%d", array[i]);
      if (i != len-1) {
         printf(",");
      }
   }
   printf("\n");
}