diff options
-rw-r--r-- | src/list.h | 18 |
1 files changed, 18 insertions, 0 deletions
@@ -188,6 +188,15 @@ LIST_VOID_(item->next = NULL) /** + * Check if a singly-linked list is empty. + */ +#define SLIST_EMPTY(list) \ + SLIST_EMPTY_((list)) + +#define SLIST_EMPTY_(list) \ + ((void)sizeof(list->tail - &list->head), !list->head) + +/** * Insert an item into a singly-linked list. * * @param list @@ -336,6 +345,15 @@ static inline void *slist_remove_impl(void *ret, void *cursor, void *next, void LIST_VOID_(item->prev = item->next = NULL) /** + * Check if a doubly-linked list is empty. + */ +#define LIST_EMPTY(list) \ + LIST_EMPTY_((list)) + +#define LIST_EMPTY_(list) \ + ((void)sizeof(list->tail - list->head), !list->head) + +/** * Add an item to the tail of a doubly-linked list. * * @param list |