Hi, On Jun 29, 4:24 pm, B Smith-Mannschott <bsmith.o...@gmail.com> wrote:
> This fully realizes the (range 10000) before calling foo, which is > wasteful if foo is written to consume more incrementally. > > I've run into this trouble with concat, when I've wanted a lazy > sequence of the concatenation of the sequences produced by a list > comprehension: > > (apply concat (for [n (range 1000)] > (range 100))) > > Concat gets passed a fully realized sequence of 1000 lazy sequences of > 100 integers. I don't think that this is true. Otherwise the following wouldn't work: user=> (defn take-5 [& more] (take 5 more)) #'user/take-5 user=> (apply take-5 (iterate inc 0)) (0 1 2 3 4) iterate creates an infinite sequence. So if the problem was apply, the second call should not return. If more than necessary is realised, I suspect some effect with chunked seqs. 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
