/*
 * Memory on the stack and on the heap.
 *
 * Jed Yang
 */
#include <stdio.h>
#include <stdlib.h>

int main(void) {
   int a; // on the stack
   printf("stack address: &a = %p\n", &a);

   int *b;
   b = malloc(sizeof(int)); // allocate on the heap
   if (!b) {
      printf("oops, out of memory\n");
      return 1; // convention to signal something is wrong
   }
   printf("heap address:   b = %p\n", b);
   printf("stack address: &b = %p\n", &b);

   free(b); // always free() what you malloc()
   return 0; // convention to signal correct termination
}