/* 	Example 19.1 : Reversing input sequence
	The user enters numbers until sentinel 999
	The program prints the numbers in the reverse order
	Author: Peter Brusilovsky 
*/

#include <stdio.h>
#include <stdlib.h>
#include "StackIntAr.h"
#define STACKSIZE 20

void main(){

	struct intstack *mystack;
	int value;
	mystack = createStack(STACKSIZE);

	printf("Enter a number, enter 999 to stop: ");
	scanf("%d",&value);

	while((value != 999) && (!fullStack(mystack))) {
		pushStack(mystack, value);
		printf("Enter another number: ");
		scanf("%d",&value);
	}
	
	while(!emptyStack(mystack)) {
		popStack(mystack, &value);
		printf("%d\n", value);
    }
    destroyStack(mystack);
}