Except your version of filter doesn't do any filtering on the rest in the case where the first satisfies the predicate.
On Sat, Dec 6, 2008 at 7:43 PM, Stephen C. Gilardi <[EMAIL PROTECTED]> wrote: > If you use a definition of filter like this in your test, I think it will > succeed: > > (defn filter-iter > [pred coll] > (when (seq coll) > (if (pred (first coll)) > [(first coll) (rest coll)] > (recur pred (rest coll))))) > > (defn filter > "Returns a lazy seq of the items in coll for which > (pred item) returns true. pred must be free of side-effects." > [pred coll] > (let [result (filter-iter pred coll)] > (when result > (lazy-cons (result 0) (result 1))))) > > --Steve > > --~--~---------~--~----~------------~-------~--~----~ 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 [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/clojure?hl=en -~----------~----~----~----~------~----~------~--~---
