Pointers to Functions bubble Program example 3 in C programming language

 Pointers to Functions bubble Program Example 3 : 

 /*----------------------- bubble_3.c -------------------------*/

/* Program bubble_3.c from PTRTUT10.HTM    6/13/97 */

#include <stdio.h>

int arr[10] = { 3,6,1,2,3,8,4,1,7,2};

void bubble(int *p, int N);
int compare(int *m, int *n);

int main(void)
{
  int i;
    putchar('\n');

    for (i = 0; i < 10; i++)
    {
        printf("%d ", arr[i]);
    }
    bubble(arr,10);
    putchar('\n');

    for (i = 0; i < 10; i++)
    {
        printf("%d ", arr[i]);
    }
    return 0;
}

void bubble(int *p, int N)
{
    int i, j, t;
    for (i = N-1; i >= 0; i--)
    {
        for (j = 1; j <= i; j++)
        {
            if (compare(&p[j-1], &p[j]))
            {
                t = p[j-1];
                p[j-1] = p[j];
                p[j] = t;
            }
        }
    }
}

int compare(int *m, int *n)
{
    return (*m > *n);
}

/*------------------ end of bubble3.c -------------------------*/