Hi, On Feb 16, 9:55 am, Stuart Halloway <stuart.hallo...@gmail.com> wrote:
> map is lazy, count and butlast are not lazy. Does adding a doall > around your call to map fix this problem? Argh. butlast is only unlazy of degree one, so to say. Is there a reason why not to provide a lazy version: (defn butlast "Return a seq of all but the last item in coll." [coll] (lazy-seq (let [s (seq coll)] (when-let [r (next s)] (cons (first s) (butlast r)))))) I see, that butlast is used in the bootstraping early on. But can't there be a bootstrap version, which does not need the whole machinery, and a "production" butlast providing laziness? Or is it not worth the trouble? Sincerely Meikel -- 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 Note that posts from new members are moderated - please be patient with your first post. 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