Hi On Fri, May 1, 2009 at 9:13 PM, Santanu <thisissant...@gmail.com> wrote: [...] > user> ((fn [a b] a b) 1 2) > 2 [...] > user> (#(%1 %2) 1 2) > java.lang.ClassCastException: java.lang.Integer cannot be cast to > clojure.lang.IF
This has come up before on the list, but the following should make it clear what is happening: user=> (macroexpand-1 '(#(%1 %2) 1 2)) ((fn* [p1__1 p2__2] (p1__1 p2__2)) 1 2) i.e. (#(%1 %2) 1 2) is not the same as: ((fn [a b] a b) 1 2) but rather: ((fn [a b] (a b) 1 2) -- Michael Wood <esiot...@gmail.com> --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---