_RB_FIND          381 sys/tree.h     struct type *name##_RB_FIND(struct name *, struct type *);		\
_RB_FIND          610 sys/tree.h     name##_RB_FIND(struct name *head, struct type *elm)			\
_RB_FIND          667 sys/tree.h     #define RB_FIND(name, x, y)	name##_RB_FIND(x, y)