On Mon, Mar 16, 2009 at 1:38 PM, Daniel Renfer <d...@kronkltd.net> wrote: > > One of the nice things about overloading first is you could always > just tell people that the one argument version of first is like > saying: (first identity coll) even though the actual implementation > wouldn't need to bother with it.
I'm afaid not. If a new 'first' were to act like (first (filter pred coll)), then the new 'first' could currently be written: (first (filter identity '(nil 1 2))) ==> 1 You can see where I'm headed: (first '(nil 1 2)) ==> nil Thus for some coll, the new (first coll) would *not* be the same as (first identity coll). --Chouser --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Clojure" group. To post to this group, send email to clojure@googlegroups.com To unsubscribe from this group, send email to clojure+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
