On Wed, Mar 11, 2009 at 9:01 AM, Vagif Verdi <vagif.ve...@gmail.com> wrote: > Is (first (filter ..) lazy like in haskell ?
It's lazy in the sense that it will only consume the sequence up to first positive result. If it doesn't find one, it will consume the entire sequence and return nil. Therefore, this form is not safe on infinite sequences! For example, (first (filter neg? (iterate inc 0))) never terminates. -Stuart Sierra --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
