Hi, Am Montag, 13. Mai 2013 13:57:57 UTC+2 schrieb Herwig Hochleitner: > > 2013/5/13 Meikel Brandmeyer (kotarak) <m...@kotka.de <javascript:>> > >> seq belongs to seq-land. empty? belongs to data structure land. It should >> actually be implemented as #(zero? (count %)). But unfortunately it is not. >> > > I'd argue it shouldn't > > (empty? (cycle [1 2 3])) => false > (zero? (count (cycle [1 2 3]))) ... infinite loop >
You misunderstood my argument. cycle returns a sequence => use seq. count is the wrong thing to call here. And calling seq without using its return value (with a name) is a smell. count should not be called in sequences. (In fact I believe that count should be O(1).) (Shameless plug in case it clarifies what I mean: http://kotka.de/blog/2010/11/Beware_the_unnamed_seq.html ) 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 --- You received this message because you are subscribed to the Google Groups "Clojure" group. To unsubscribe from this group and stop receiving emails from it, send an email to clojure+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.
