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#ifndef XLIST_H
#define XLIST_H
#ifdef __cplusplus
extern "C"
{
#endif /* __cplusplus */
struct xlist_node {
void *data;
struct xlist_node *next;
struct xlist_node *prev;
};
typedef void (*xlist_destructor_t)(void *data);
struct xlist_node *xlist_new(void *data);
void xlist_destroy(struct xlist_node *list, xlist_destructor_t destructor);
void xlist_append_item(struct xlist_node *list, struct xlist_node *item);
void xlist_remove_item(struct xlist_node *item);
struct xlist_node *xlist_shift(struct xlist_node *list);
int xlist_empty(const struct xlist_node *list);
size_t xlist_length(const struct xlist_node *list);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* XLIST_H */
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