Implementation of bubble sort on array of integers in C

bubble_sort.c

#include <stdio.h>


void swap(int *a, int *b);

void print_array(int *arr, int len_arr);

int main(void)
{
   int items[]   = { 5, 2, 7, 4, 1, 6, 3, 0 };
   int len_items = sizeof(items) / sizeof(*items);

   // Print original order
   print_array(items, len_items);

   // Bubble sort
   int swaps_count;
   int j = len_items - 1;

   do
   {
      swaps_count = 0;
      for (int i = 0; i < j; ++i)
      {
         if (items[i] > items[i + 1])
         {
            swap(&items[i], &items[i + 1]);
            swaps_count += 1;
         }
      }
      --j;
   } while (swaps_count > 0);

   // Print sorted order
   print_array(items, len_items);
}


void swap(int *a, int *b)
{
   int tmp = *a;

   *a = *b;
   *b = tmp;
}


void print_array(int *arr, int len_arr)
{
   for (int i = 0; i < len_arr; ++i)
   {
      printf("%d ", arr[i]);
      if (len_arr - 1 == i)
      {
         printf("\n");
      }
   }
}