/*--------------------------------------------------------------------*/
/* teststackao.c                                                      */
/* Author: Bob Dondero                                                */
/*--------------------------------------------------------------------*/

#include "stackao.h"
#include <stdio.h>
#include <stdlib.h>

/* Write an error message to stderr indicating that not enough memory
   is available.  Then exit with status EXIT_FAILURE. */
static void handleMemoryError(void)
{
   fprintf(stderr, "Insufficient memory\n");
   exit(EXIT_FAILURE);
}

/* Test the Stack abstract object.  Return 0, or EXIT_FAILURE if not
   enough memory is available. */
int main(void)
{


   int iSuccessful;

   iSuccessful = Stack_init();
   if (! iSuccessful) handleMemoryError();

   iSuccessful = Stack_push(1.1);
   if (! iSuccessful) handleMemoryError();

   iSuccessful = Stack_push(2.2);
   if (! iSuccessful) handleMemoryError();

   iSuccessful = Stack_push(3.3);
   if (! iSuccessful) handleMemoryError();

   while (! Stack_isEmpty())
      printf("%g\n", Stack_pop());

   Stack_free();

   iSuccessful = Stack_init();
   if (! iSuccessful) handleMemoryError();

   iSuccessful = Stack_push(4.4);
   if (! iSuccessful) handleMemoryError();

   iSuccessful = Stack_push(5.5);
   if (! iSuccessful) handleMemoryError();

   iSuccessful = Stack_push(6.6);
   if (! iSuccessful) handleMemoryError();

   while (! Stack_isEmpty())
      printf("%g\n", Stack_pop());

   Stack_free();

   return 0;
}

/* Output: 3.3 2.2 1.1 6.6 5.5 4.4 one per line*/