/*-------------------------------------------------------------------*/
/* revfn1.c                                                          */
/* Array and functions.                                              */
/*-------------------------------------------------------------------*/

#include <stdio.h>

enum {ARRAYSIZE = 5};

/*-------------------------------------------------------------------*/

static void getNumbers(int *piNums)

/* piNums is a pointer to the first element of an array.  Read 
   integers from stdin into that array.  */

{
   int *piAfterLast;

   printf("Enter %d integers:\n", ARRAYSIZE);

   piAfterLast = piNums + ARRAYSIZE;
   while (piNums != piAfterLast)
   {
      scanf("%d", piNums);
      piNums++;
   }
}

/*-------------------------------------------------------------------*/

static void putNumbers(int *piNums)

/* piNums is a pointer to the first element of an array.  Print the 
   elements of that array to stdout in reverse order.  */

{
   int *piAfterLast;

   printf("The integers in reverse order are:\n");

   piAfterLast = piNums + ARRAYSIZE;
   while (piAfterLast != piNums)
   {
      piAfterLast--;
      printf("%d\n", *piAfterLast);
   }
}

/*-------------------------------------------------------------------*/

int main(void)

/* Read ARRAYSIZE integers from stdin, and write them in reverse 
   order to stdout.  Return 0. */

{
   int aiNumbers[ARRAYSIZE];

   getNumbers(aiNumbers);
   printf("\n");
   putNumbers(aiNumbers);

   return 0;
}