Lines Matching refs:NULL
182 { NULL }
192 #define SLIST_EMPTY(head) ((head)->slh_first == NULL)
208 ((var) = *(varp)) != NULL; \
212 SLIST_FIRST((head)) = NULL; \
255 { NULL, &(head).stqh_first }
273 #define STAILQ_EMPTY(head) ((head)->stqh_first == NULL)
289 STAILQ_FIRST((head)) = NULL; \
294 if ((STAILQ_NEXT((elm), field) = STAILQ_NEXT((tqelm), field)) == NULL)\
300 if ((STAILQ_NEXT((elm), field) = STAILQ_FIRST((head))) == NULL) \
306 STAILQ_NEXT((elm), field) = NULL; \
313 NULL : \
328 STAILQ_NEXT(STAILQ_NEXT(curelm, field), field)) == NULL)\
336 STAILQ_NEXT(STAILQ_FIRST((head)), field)) == NULL) \
341 if ((STAILQ_FIRST((head)) = STAILQ_NEXT((elm), field)) == NULL) \
354 { NULL }
368 if (LIST_FIRST((head)) != NULL && \
375 if (LIST_NEXT((elm), field) != NULL && \
391 #define LIST_EMPTY(head) ((head)->lh_first == NULL)
406 LIST_FIRST((head)) = NULL; \
411 if ((LIST_NEXT((elm), field) = LIST_NEXT((listelm), field)) != NULL)\
428 if ((LIST_NEXT((elm), field) = LIST_FIRST((head))) != NULL) \
439 if (LIST_NEXT((elm), field) != NULL) \
458 { NULL, &(head).tqh_first }
481 #define TAILQ_EMPTY(head) ((head)->tqh_first == NULL)
506 TAILQ_FIRST((head)) = NULL; \
512 if ((TAILQ_NEXT((elm), field) = TAILQ_NEXT((listelm), field)) != NULL)\
535 if ((TAILQ_NEXT((elm), field) = TAILQ_FIRST((head))) != NULL) \
547 TAILQ_NEXT((elm), field) = NULL; \
564 if ((TAILQ_NEXT((elm), field)) != NULL) \