/* Lecture #5 Demo
 *
 * Bad Pointer
 *
 * The first loop uses a character pointer to step through a string
 *  to the null terminator at the end.
 * The second loop uses an integer pointer to scan the region of
 *  memory where the local variables are located.
 */
#include <stdio.h>

int main()
{
	char s[]  = "Hello World.\n";
	char *t   = s;


	do {
		printf("(0x%08X): %c %3d 0x%X\n",
			t,  *t,  *t,  *t);
	} while (*t++);

	printf("\n\n");

        int *badptr = NULL;
	/* A type cast is needed for this assignment to avoid a */
	/*  warning of "incompatible pointer assignment".       */
	badptr = (int *)s;	

	do {
		printf("(0x%08X) : %12d 0x%08X\n",
			badptr, *badptr, *badptr);
	} while (*badptr++);
	/* What (if anything) causes this loop to terminate? */
}