/* 
	Example 21.1
	Stack application driver 
	Author: Peter Brusilovsky 
*/
#include "StackIntLL.h"
#include <stdio.h>

void main(){

	STACK *mystack; /* small difference from Example 16.1 */
	int i;
	int value;

	
	
	mystack = createStack(10);
	
	while(1){
		printf("Stack manipulation:\n\n");
		
		printf("1. Push\n");
		printf("2. Pop\n");
		printf("3. Top\n");
		printf("4. End\n\n");
		
		scanf("%d",&i);
		
		if(i == 1) {
				printf("Value? ");
				scanf("%d",&value);
				if(pushStack(mystack, value))
					printf("Value %d pushed in\n", value);
				else
					printf("Stack is Full\n");
		} else if (i == 2) 
				if(popStack(mystack, &value)) 
					printf("Value %d popped\n", value);
				else
					printf("Stack is Empty\n");
		else if (i == 3) 
				if (stackTop(mystack, &value))
					printf("Value on the top is %d\n", value);
				else
					printf("Stack is Empty\n");
		else {
				destroyStack(mystack); /* now correcly releasing memory */
				return;
		}
	}
}