list.h


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#pragma once
#define LINKEDLIST void *prev, *next, *listhead

struct list {
    void *tail, *head, *end;
};

extern void list_init(struct list *list);
extern int list_empty(struct list *list);
extern int list_singleton(struct list *list);

extern void *list_circular_prev(void *_node);
extern void *list_circular_next(void *_node);

extern void list_insert(void *_next, void *_node);
extern void list_remove(void *_node);