/*
 *	Listing 2 -- Error by writing a freed pointer
 *			(item's value may have changed)
 */

#include <stdlib.h>
#include <assert.h>

void	main() {
int	*ip;

	/* allocate an integer */
	ip = malloc(sizeof(int));
	assert(ip != NULL);

	/* initialize the integer */
	(*ip) = 1;

	/* deallocate the integer */
	free(ip);

	/* update the deallocated integer */
	(*ip)++;
	printf("*ip == %d\n",*ip);
}
