#ifndef   SL_LIST_H__
# define  SL_LIST_H__

# define SL_LIST_BUFLEN 8

struct sl_list_item {
	void *data[SL_LIST_BUFLEN];
	struct sl_list_item *next;
};

typedef struct {
	unsigned int count;
	struct sl_list_item *first;
} sl_list;

/**
 * Allocate a new list and return it
 * result should be unallocated with sllist_destroy()
**/
sl_list *sllist_create();

/**
 * Free all ressources allocated by sllist_create
**/
void sllist_destroy(sl_list *list);

/**
 * Get the numbers of items contained in sl_list
**/
unsigned int sllist_count(const sl_list * const list);

/**
 * Add an item at the end of the list
**/
sl_list *sllist_pushback(sl_list *list, void *item);

/**
 * Remove the last item of the list and return it
**/
void *sllist_popback(sl_list *list);

/**
 * Get the item at position %pos
**/
void *sllist_at(const sl_list * const list, unsigned int pos);

/**
 * Remove the item at position %pos, and return it
 * TODO
**/
void *sllist_removeat(sl_list *list, unsigned int pos);

/**
 * Remove all elements
**/
sl_list *sllist_clear(sl_list *list);

/**
 * Return index of first item, using compare fnc
 * Return -1 on failure
 * TODO
**/
int sllist_find(sl_list *list, int(*fnc)(const void *cmp, const void *param), const void *param);

/**
 * Execute function foreach values of list
 * Param 2 is custom_data
 * A -1 return value will act as a `break` instruction
 * return the number of iterated objects
**/
int sllist_foreach(sl_list *list, int(*fnc)(void **item, void *custom), void *custom);

/**
 * Comp functions
 * usable with sllist_find
**/
int sllist_cmp_int(const void *a, const void *b);
int sllist_cmp_string(const void *a, const void *b);

#endif /* SL_LIST_H__ */