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From: Tomas Hlavaty <tom@logand.com>
Newsgroups: gmane.emacs.help
Subject: Re: How to avoid compiler warning `unused lexical variable' for
 `dolist' or `dotimes'?
Date: Mon, 11 Jan 2021 23:23:57 +0100
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To: Stefan Monnier <monnier@iro.umontreal.ca>
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On Sun 10 Jan 2021 at 09:52, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
>> I see that Emacs Lisp does not have a way to distinguish the two cases.
>>
>> In Common Lisp, (declare (ignore i)) means ignore unused variable i.  If
>> i is used, I get a warning.
>
> ELisp's equivalent is to use a variable name with a leading underscore
> such as `_i` (or just `_`).

That's good to know, thank you!