> user=> (flatten nil) > (nil) Not a bug.
flatten returns a sequence - in this case a sequence containing 'nil. How else would you flatten on nil? In the former cases the flatten returns the seq - nil Can Clojure return an empty sequence otherwise? (def x ()) (first x) => nil (def y x) y => nil user> (def y x) #'user/y user> y nil user> (flatten y) (nil) On Dec 14, 9:16 pm, Michel Salim <michel.syl...@gmail.com> wrote: > On Dec 14, 3:16 pm, Randall R Schulz <rsch...@sonic.net> wrote: > > > Does this makes sense (specifically the last one)? > > > user=> (flatten []) > > nil > > > user=> (flatten ()) > > nil > > Yes; the empty sequence is just nil. > > > user=> (flatten nil) > > (nil) > > That does look like a bug. > > -- > Michel --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
