#ifndef STACK_H
#define STACK_H

#define DEFAULT_SIZE_STACK 10
#define GROWTH_STACK 2


typedef struct {
  void **items;
  
  unsigned long count;
  unsigned long size;
  
} stack;

int initStack (stack **);
int destroyStack (stack **);

int pushStack (stack *, void *);
int popStack (stack *, void **);
int peekStack (stack *, void **);



#endif