165 #define	SLIST_FOREACH_SAFE(var, head, field, tvar)			\  argument
167 	    (var) && ((tvar) = SLIST_NEXT((var), field), 1);		\
168 	    (var) = (tvar))
247 #define	STAILQ_FOREACH_SAFE(var, head, field, tvar)			\  argument
249 	    (var) && ((tvar) = STAILQ_NEXT((var), field), 1);		\
250 	    (var) = (tvar))
364 #define	LIST_FOREACH_SAFE(var, head, field, tvar)			\  argument
366 	    (var) && ((tvar) = LIST_NEXT((var), field), 1);		\
367 	    (var) = (tvar))
485 #define	TAILQ_FOREACH_SAFE(var, head, field, tvar)			\  argument
487 	    (var) && ((tvar) = TAILQ_NEXT((var), field), 1);		\
488 	    (var) = (tvar))
495 #define	TAILQ_FOREACH_REVERSE_SAFE(var, head, headname, field, tvar)	\  argument
497 	    (var) && ((tvar) = TAILQ_PREV((var), headname, field), 1);	\
498 	    (var) = (tvar))