指针比较

#include <stdio.h>



const int MAX = 3;



int main () {



   int  var[] = {10, 100, 200};

   int  i, *ptr;



   /* let us have address of the first element in pointer */

   ptr = var;

   i = 0;



   while ( ptr <= &var[MAX - 1] ) {



      printf("Address of var[%d] = %x\n", i, ptr );

      printf("Value of var[%d] = %d\n", i, *ptr );



      /* point to the previous location */

      ptr++;

      i++;

   }



   return 0;

}