202 #define	SLIST_FOREACH(var, head, field)					\  argument
203 	for ((var) = SLIST_FIRST((head));				\
204 	    (var);							\
205 	    (var) = SLIST_NEXT((var), field))
207 #define	SLIST_FOREACH_FROM(var, head, field)				\  argument
208 	for ((var) = ((var) ? (var) : SLIST_FIRST((head)));		\
209 	    (var);							\
210 	    (var) = SLIST_NEXT((var), field))
212 #define	SLIST_FOREACH_SAFE(var, head, field, tvar)			\  argument
213 	for ((var) = SLIST_FIRST((head));				\
214 	    (var) && ((tvar) = SLIST_NEXT((var), field), 1);		\
215 	    (var) = (tvar))
217 #define	SLIST_FOREACH_FROM_SAFE(var, head, field, tvar)			\  argument
218 	for ((var) = ((var) ? (var) : SLIST_FIRST((head)));		\
219 	    (var) && ((tvar) = SLIST_NEXT((var), field), 1);		\
220 	    (var) = (tvar))
222 #define	SLIST_FOREACH_PREVPTR(var, varp, head, field)			\  argument
224 	    ((var) = *(varp)) != NULL;					\
225 	    (varp) = &SLIST_NEXT((var), field))
321 #define	STAILQ_FOREACH(var, head, field)				\  argument
322 	for((var) = STAILQ_FIRST((head));				\
323 	   (var);							\
324 	   (var) = STAILQ_NEXT((var), field))
326 #define	STAILQ_FOREACH_FROM(var, head, field)				\  argument
327 	for ((var) = ((var) ? (var) : STAILQ_FIRST((head)));		\
328 	   (var);							\
329 	   (var) = STAILQ_NEXT((var), field))
331 #define	STAILQ_FOREACH_SAFE(var, head, field, tvar)			\  argument
332 	for ((var) = STAILQ_FIRST((head));				\
333 	    (var) && ((tvar) = STAILQ_NEXT((var), field), 1);		\
334 	    (var) = (tvar))
336 #define	STAILQ_FOREACH_FROM_SAFE(var, head, field, tvar)		\  argument
337 	for ((var) = ((var) ? (var) : STAILQ_FIRST((head)));		\
338 	    (var) && ((tvar) = STAILQ_NEXT((var), field), 1);		\
339 	    (var) = (tvar))
506 #define	LIST_FOREACH(var, head, field)					\  argument
507 	for ((var) = LIST_FIRST((head));				\
508 	    (var);							\
509 	    (var) = LIST_NEXT((var), field))
511 #define	LIST_FOREACH_FROM(var, head, field)				\  argument
512 	for ((var) = ((var) ? (var) : LIST_FIRST((head)));		\
513 	    (var);							\
514 	    (var) = LIST_NEXT((var), field))
516 #define	LIST_FOREACH_SAFE(var, head, field, tvar)			\  argument
517 	for ((var) = LIST_FIRST((head));				\
518 	    (var) && ((tvar) = LIST_NEXT((var), field), 1);		\
519 	    (var) = (tvar))
521 #define	LIST_FOREACH_FROM_SAFE(var, head, field, tvar)			\  argument
522 	for ((var) = ((var) ? (var) : LIST_FIRST((head)));		\
523 	    (var) && ((tvar) = LIST_NEXT((var), field), 1);		\
524 	    (var) = (tvar))
690 #define	TAILQ_FOREACH(var, head, field)					\  argument
691 	for ((var) = TAILQ_FIRST((head));				\
692 	    (var);							\
693 	    (var) = TAILQ_NEXT((var), field))
695 #define	TAILQ_FOREACH_FROM(var, head, field)				\  argument
696 	for ((var) = ((var) ? (var) : TAILQ_FIRST((head)));		\
697 	    (var);							\
698 	    (var) = TAILQ_NEXT((var), field))
700 #define	TAILQ_FOREACH_SAFE(var, head, field, tvar)			\  argument
701 	for ((var) = TAILQ_FIRST((head));				\
702 	    (var) && ((tvar) = TAILQ_NEXT((var), field), 1);		\
703 	    (var) = (tvar))
705 #define	TAILQ_FOREACH_FROM_SAFE(var, head, field, tvar)			\  argument
706 	for ((var) = ((var) ? (var) : TAILQ_FIRST((head)));		\
707 	    (var) && ((tvar) = TAILQ_NEXT((var), field), 1);		\
708 	    (var) = (tvar))
710 #define	TAILQ_FOREACH_REVERSE(var, head, headname, field)		\  argument
711 	for ((var) = TAILQ_LAST((head), headname);			\
712 	    (var);							\
713 	    (var) = TAILQ_PREV((var), headname, field))
715 #define	TAILQ_FOREACH_REVERSE_FROM(var, head, headname, field)		\  argument
716 	for ((var) = ((var) ? (var) : TAILQ_LAST((head), headname));	\
717 	    (var);							\
718 	    (var) = TAILQ_PREV((var), headname, field))
720 #define	TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\  argument
721 	for ((var) = TAILQ_LAST((head), headname);			\
722 	    (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\
723 	    (var) = (tvar))
725 #define	TAILQ_FOREACH_REVERSE_FROM_SAFE(var, head, headname, field, tvar) \  argument
726 	for ((var) = ((var) ? (var) : TAILQ_LAST((head), headname));	\
727 	    (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\
728 	    (var) = (tvar))