Clojure 1.5.1 user=> (def bar (cons 1 (map #(do (println %) (+ (nth bar %) %)) (range)))) #'user/bar user=> (take 10 bar) (0 1 IndexOutOfBoundsException clojure.lang.RT.nthFrom (RT.java:795)
It is possible that it is lein/REPLy that's causing the output not to be print, I've seen it done a number of times. On Fri, Feb 13, 2015 at 8:02 AM, Fluid Dynamics <a2093...@trbvm.com> wrote: > And here's some really crazy behavior from 1.5.1! > > => (def bar (cons 1 (map #(do (println %) (+ #_(nth bar %) %)) (range)))) > #'user/bar > => (take 10 bar) > (0 > > 1 > 2 > 3 > 4 > 5 > 6 > 7 > 8 > 9 > 10 > 11 > 12 > 13 > 14 > 15 > 16 > 17 > 18 > 19 > 20 > 21 > 22 > 23 > 24 > 25 > 26 > 27 > 28 > 29 > 30 > 31 > 1 0 1 2 3 4 5 6 7 8) > => (def bar (cons 1 (map #(do (println %) (+ (nth bar %) %)) (range)))) > #'user/bar > => (take 10 bar) > IndexOutOfBoundsException clojure.lang.RT.nthFrom (RT.java:795) > > Erm, what? There should have been at least one number printed by the > (println %) before the (nth bar %) could possibly have blown up. > Furthermore, the *first* round of prints shows that % was never out of range > for an infinite lazy sequence, i.e. was never negative. So 1.5.1 is actually > behaving *schizophrenically* here: a bare delay that recursively forces > itself overflows the stack, but the delay for the next-part of a ChunkedSeq > is instead apparently being seen as holding nil when forced inside its own > evaluation. But a delay is a delay is a delay and the same behavior should > occur consistently, nil or an exception, no matter where the delay is > "located"! > > -- > 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/d/optout. -- 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/d/optout.
