Thanks Jason. Anyway I'd like to have (sum) returns 0 so I used [& more]. Is there any way to specify 0 or more args?
-sun On Jan 23, 12:49 pm, Jason Wolfe <jawo...@berkeley.edu> wrote: > Two mistakes: > > First, if you want sum to take a vector, you should remove the & from > the arglist. > Second, (rest(other)) should be (rest other). > > This buys you: > > user> (defn sum [more ] > ((fn [total other] > (if other > (recur (+ total (first other)) (rest other)) > total)) > 0 more)) > #'user/sum > user> (sum [1 2 3 4]) > 10 > > (of course, sum could also be defined as just (apply + more) or > (reduce + more)). > > -Jason --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
