i was thinking to implement a (rather confusing) rwlock mechanism in my program, then i read in Ben Pfaff's libavl about the concept of generation. hoho. i love this diligent documenter. ;) it's not exactly a match of rwlock. but it's nevertheless very interesting. and almost did the job. ok, now you know i'm really an amateur to joy about such trivial things. ;)
on the other hand, yesterday's delight about my new understanding of the centipede game turns out to have rather serious problems itself. heheheh.