.Sh EXAMPLES

Sort an array of integers.

.Bd -literal

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

/*

 * Custom comparison function

 */

static int

str_compare(const void *p1, const void *p2)

{

	/* Cast and dereference */

	if (*(int *)p1 < *(int *)p2)

		return (-1);

	if (*(int *)p1 > *(int *)p2)

		return (1);

	return (0);

}

/*

 * Sort an array of integers

 */

int

main(int argc, char **argv)

{

	int i;

	int int_array[] = {4, 5, 9, 3, 1, 7, 2, 8, 6};

	const int array_size = sizeof(int_array) / sizeof(int);

	/* Sort array */

	qsort(&int_array, array_size, sizeof(int), str_compare);

	/* Print out sorted array */

	for (i = 0; i < array_size; i++) {

		printf("%d\n", int_array[i]);

	}

	exit(EXIT_SUCCESS);

}

.Ed