From: Heime <heimeborgia@protonmail.com>
To: Emanuel Berg <incal@dataswamp.org>
Cc: help-gnu-emacs@gnu.org
Subject: Re: cond construct for situation when a variable is t
Date: Tue, 22 Aug 2023 12:18:10 +0000 [thread overview]
Message-ID: <fGnRvqkdkFuisqCMc-Q6vHXCCGPfK9HO7K7-95Y_61DGLU3MvVpo7kmPGzhugkdO_ThXbinJqUeE98gC7JxCtDPWgIccs4hGCkPznUUoU4Y=@protonmail.com> (raw)
In-Reply-To: <87o7j2d6yd.fsf@dataswamp.org>
Sent with Proton Mail secure email.
------- Original Message -------
On Wednesday, August 23rd, 2023 at 12:10 AM, Emanuel Berg <incal@dataswamp.org> wrote:
> Heime wrote:
>
> > How can I use the 'cond' construct for the case when
> > a variable is 't' ?
>
>
> It could look like this but in practice one would probably put
> it in another way, that looks better.
>
> (setq var nil)
>
> (cond
> (var 1)
> ((not var) 0) )
Which one looks better, the one you wrote with 0 and 1 ?
Is it not recommended to use t ?
> > I can set a variable to boolean true using (setq var t), am
> > I right ?
>
>
> You can, you totally can. Just don't `setq' t to anything ;)
Right, because one can set the letter t to something which would then
screw up the idea that t means a truth condition.
> --
> underground experts united
> https://dataswamp.org/~incal
next prev parent reply other threads:[~2023-08-22 12:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-18 14:00 cond construct for situation when a variable is t Heime
2023-08-19 22:04 ` Emanuel Berg
2023-08-22 12:18 ` Heime [this message]
2023-08-22 16:10 ` [External] : " Drew Adams
2023-08-22 19:31 ` Emanuel Berg
2023-08-23 19:49 ` Drew Adams
2023-08-22 19:29 ` Emanuel Berg
2023-08-22 12:32 ` Heime
2023-08-22 16:17 ` [External] : " Drew Adams
2023-08-22 20:21 ` Heime
2023-08-22 21:07 ` Drew Adams
2023-08-19 22:43 ` Rudolf Adamkovič
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to='fGnRvqkdkFuisqCMc-Q6vHXCCGPfK9HO7K7-95Y_61DGLU3MvVpo7kmPGzhugkdO_ThXbinJqUeE98gC7JxCtDPWgIccs4hGCkPznUUoU4Y=@protonmail.com' \
--to=heimeborgia@protonmail.com \
--cc=help-gnu-emacs@gnu.org \
--cc=incal@dataswamp.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).