CODEWITHSUNDEEP
emacslispelisp
prasad iyer
prasad iyer

Reputation: 11

Beginning elisp How to write division without actually using division sign

I am starting elisp, I want to write a function to divide 2 numbers without using the divison sign. I get the error Symbol's value as variable is void: div

(cl-flet ((div (x y z)
            (cond ((< x y) (message "hello world"))
                  ((> x y) (div (- x y) y (+ 1 z))))))
  (let ((a 30) (b 10))
    (div a b 1)))

The same function I have written in erlang:

start(A, B)->
    ds(A, B, 0).

ds(A, B, C) when ( A -  ( B * (C + 1))) >=  0 ->
    ds(A, B, C+1);
ds(_A, _B, C) ->
 C.

Upvotes: 1

Views: 224

Answers (1)

C. K. Young
C. K. Young

Reputation: 223133

You can't use flet for recursive functions, you have to use labels instead.

Upvotes: 3

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