2010/3/9 André Ferreira <greis...@gmail.com>: > Conj adds to the end of a vector in constant time, but rest will not > return another vector, but a sequence. Converting that sequence into > another vector will take O(n). If you want queueing behaviour, you > should use a clojure.lang.PersistentQueue: > (-> clojure.lang.PersistentQueue/EMPTY (conj 5) (conj 7) pop (conj 8) > peek)
rest is definately a bad choice, thanks for pointing that out! In this particular case, it could be replaced with subvec (called with two arguments: (subvec v 1)) which the docs describe as being "O(1) and very fast", but since it is precisely the semantics of a queue that I had in mind, your suggestion is probably better. Sincerely, Michał -- 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
