slist.h

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#ifndef SLIST_H
#define SLIST_H

#include <stddef.h>
#include <stdbool.h>

struct slist_element {
    struct slist_element *next;
};

int slist_element_init(struct slist_element *element);

int slist_element_insert_after(struct slist_element *after, struct slist_element *element);

int slist_element_remove_after(struct slist_element *after);

struct slist {
    struct slist_element head;
};

int slist_init(struct slist *list);

int slist_is_empty(struct slist *list, bool *is_empty);

int slist_prepend(struct slist *list, struct slist_element *element);

int slist_append(struct slist *list, struct slist_element *element);

int slist_remove(struct slist *list, struct slist_element *element);

int slist_remove_head(struct slist *list, struct slist_element **element);

struct slist_iterator {
    struct slist_element *current;
};

int slist_iterator_init(struct slist_iterator *it, struct slist *list);

int slist_iterator_next(struct slist_iterator *it, struct slist_element **element);

#endif //SLIST_H