Are you sure you need to capture the state in next-sine? It's not very clojure-ly to have functions with state. I would capture the state in the caller as an integer and just use get or nth on the lazy seq. If you want to stick to your impure function, please mark it with a ! at the end: next-sine!
On Thu, Oct 14, 2010 at 9:52 PM, clwham...@gmail.com <clwham...@gmail.com> wrote: > I need a function that produces the 'next' value from a lazy-seq -- > something like a Python generator. I imagine it would have to be some > sort of closure like: > > (def next-sine > (let [sines (atom (cycle (map sin (range 0 6.28 0.01))))] > #(swap! sines rest))) > > Is there a more idomatic way of doing this? I don't see a lot of use > of closures in clojure... > > -- > 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 -- Moritz Ulrich Programmer, Student, Almost normal Guy http://www.google.com/profiles/ulrich.moritz BB5F086F-C798-41D5-B742-494C1E9677E8 -- 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
