[C]Stack

[Luc@s]

/*
### Copyright (c) 2004 Luca Francesca
### This script is provided under the terms of the GNU General Public License
### (see http://www.gnu.org/licenses/gpl.html for the full license text.)
*/
#include <stdio.h>
#include <time.h>
#include <stdlib.h>
#include "Common.h"

#define SIZE 100

typedef struct _Stack *Stack;

struct _Stack
{
	int stack[SIZE];
	int top;
};

Stack Init(int val);
void  Push(Stack st, int val);
int   Pop(Stack st);
void  Delete(Stack st);

int main(int argc, char *argv[])
{
	srand(time(NULL));
	Stack st = Init(10);
	int i = 0;
	for(i; i < SIZE; ++i)
	{
		Push(st, i);
	}
	for(i; i < SIZE; ++i)
	{
		printf("%d\n", Pop(st));
	}
	Delete(st);
  ExitFunction();
  return 0;
}

Stack Init(int val)
{
	Stack tmp;
  tmp = malloc(sizeof(struct _Stack));
	tmp->top = 0;
	tmp->stack[tmp->top] = val;
	return tmp;
}

void Push(Stack st, int val)
{
	if(st->top == 0)
		return;
	st->stack[st->top++] = val;
}

int Pop(Stack st)
{
	if(st->top == 0)
		return 0;
	else
		return st->stack[st->top--];
}

void Delete(Stack st)
{
	SAFE_DELETE(st)
}

Non mi stampa nulla.
Why??