#ifndef LISTS_H
#define LISTS_H

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

typedef struct {
  char *str;
  Type type;
} Pair;

#define LIST_CONTENT_TYPE Pair
#define LIST_CONTENT_EGAL(x,y) (strcmp(x->str,y->str) == 0)


struct lnode{						
  LIST_CONTENT_TYPE *content;
  struct lnode *next;						
};							

typedef struct lnode *List;				

extern List						
list_add(LIST_CONTENT_TYPE *, List);	

extern int 
list_length(List);

extern List 
list_find(const LIST_CONTENT_TYPE *, List);

				


#endif /*  LISTS_H */