In Lisp, how many inputs can the + function actually have?

Question

I\'m relatively new to Lisp, and I was wondering if there really is an upper limit to the \"+\" function.

(I guess this applies to all the other arithmetic function

Answer 1

It depends of the implementation. "I would suggest LISP users take 5 minutes to test their platform".

For Clojure

(defn find-max-n [n]
  (try 
    (eval (concat (list +) (take n (repeat 1))))
    (println "more than" n)
    ; return n if something goes wrong
    (catch Exception e n))
  (recur (* n 2)))


(find-max-n 1)

It doesn't terminate, it hangs at 8192 given my settings.

more than 1
more than 2
more than 4
more than 8
more than 16
more than 32
more than 64
more than 128
more than 256
more than 512
more than 1024
more than 2048
more than 4096
more than 8192