#ifndef _LIST_H_
#define _LIST_H_

#include <stddef.h>



typedef void (*callback)(void *);

typedef struct _list_node
{
	void *data;
	struct _list_node *next;
} list_node;

typedef struct
{
	size_t num_nodes;
	size_t data_size;
	list_node *head;
	list_node *tail;
} list;

extern void list_create(list *list, size_t data_size);
extern void list_destroy(list *list);

extern void list_prepend(list *list, void *data);
extern void list_append(list *list, void *data);
extern size_t list_num_elements(list *list);
extern void list_foreach(list *list, callback func);



#endif	// _LIST_H_