Also, you should be using loop/recur instead of mutating atoms here, this is the functional way.
You already laid out your 2 loop bindings, and a stop condition. This should be straightforward. Philippe. Le 27 mai 2014 09:44, "Dylan Gleason" <dgleason8...@gmail.com> a écrit : > I am trying to read a TCP request via an instance of DataInputStream and > am running into this error with the following code: > > (defn receive > [socket] > (with-open [reader (DataInputStream. (.getInputStream socket))] > (let [length (read-length reader) > bytes-in (byte-array length) > offset (atom 0) > index (atom 0)] > (while (not= -1 @offset) > (reset! offset (.read reader bytes-in offset (- length index))) > (reset! index (+ index offset)))))) > > For some reason, trying to update the value in offset appears to result in > this casting error. I tried testing a similar expression at the REPL, and > it works, e.g. > > > (def blah (atom 0)) > > (reset! blah 93) ; no error > > It seems odd that Clojure would complain about this, since "93" is an > instance of java.lang.Long -- why would Clojure be so annoyingly > anal-retentive when setting the atom to a java.lang.Num? Also, if anyone > has any ideas on how to make achieve this without using atoms, and what the > best approach would be (a recursive solution using loop-recur, perhaps?) > > -- > 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.
