Re: How to avoid compiler warning `unused lexical variable' for `dolist' or `dotimes'?

[Stefan Monnier]

>> This distinction becomes relevant if BODY modifies VAR or captures it
>> in a closure.
> Maybe I am being thick, but I cannot think of how there would be a
> different behaviour.

Try:

    (let (funs)
      (dotimes (i 5)
        (push (lambda () i) funs))
      (mapcar #'funcall funs))

IIUC the version you advocate would return

    (5 5 5 5 5)

whereas the current version returns

    (4 3 2 1 0)

Other differences occur if you do

    (let (vals)
      (dotimes (i 10)
        (push (setq i (1+ i)) vals))
      vals)


-- Stefan