From: Jean-Christophe Helary <jean.christophe.helary@traduction-libre.org>
To: Emacs developers <emacs-devel@gnu.org>
Subject: Re: evaluating numbers
Date: Wed, 29 Apr 2020 12:49:42 +0900 [thread overview]
Message-ID: <06D31418-417C-42BB-8D6E-636BA1E85798@traduction-libre.org> (raw)
In-Reply-To: <E1jTdJN-0006Il-Nm@fencepost.gnu.org>
> On Apr 29, 2020, at 12:23, Richard Stallman <rms@gnu.org> wrote:
>
>>> Is that the reason why characters are integers in emacs lisp too ?
>
>> If you are asking why this happened historically, then I don't know: I
>> wasn't there. Maybe Richard can answer that.
>
> I decided to represent characters using integers that just to keep
> Emacs simple and small. In the 1980s, people wanted to run Emacs on
> machines with 1 meg of memory and a hard limit on process size. I had
> to work hard to make that operate at all.
>
> A separate character type would have required a number of extra
> conversion and test functions as well as read and print support.
>
> Those space considerations are no longer significant. But there may
> be another problem: whether there is room in the representation of
> Lisp_Object for another type.
Thank you very much for the explanation.
Jean-Christophe Helary
-----------------------------------------------
http://mac4translators.blogspot.com @brandelune
next prev parent reply other threads:[~2020-04-29 3:49 UTC|newest]
Thread overview: 95+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-07 9:43 evaluating numbers Jean-Christophe Helary
2019-11-07 9:57 ` Stephen Berman
2019-11-07 10:20 ` Jean-Christophe Helary
2019-11-07 10:30 ` Stephen Berman
2019-11-07 10:40 ` Jean-Christophe Helary
2019-11-07 14:39 ` Eli Zaretskii
2019-11-08 0:36 ` Jean-Christophe Helary
2019-11-08 10:03 ` Eli Zaretskii
2019-11-08 12:23 ` Jean-Christophe Helary
2019-11-08 13:22 ` Stefan Monnier
2019-11-09 0:20 ` Jean-Christophe Helary
2019-11-09 7:24 ` Eli Zaretskii
2019-11-08 13:49 ` Eli Zaretskii
2019-11-09 0:15 ` Jean-Christophe Helary
2019-11-09 7:22 ` Eli Zaretskii
2019-11-09 11:18 ` Jean-Christophe Helary
2019-11-09 11:48 ` Eli Zaretskii
2019-11-10 0:59 ` Jean-Christophe Helary
2019-11-10 8:06 ` Andreas Schwab
2019-11-10 20:52 ` Juri Linkov
2019-11-12 20:28 ` Juri Linkov
2019-11-12 22:05 ` Drew Adams
2019-11-12 22:21 ` Eli Zaretskii
2019-11-12 23:30 ` Drew Adams
2019-11-13 8:10 ` Eli Zaretskii
2019-11-13 14:47 ` Drew Adams
2019-11-14 12:45 ` Eli Zaretskii
2019-11-14 22:50 ` Juri Linkov
2019-11-14 23:40 ` Noam Postavsky
2019-11-15 8:14 ` Eli Zaretskii
2019-11-14 9:22 ` Eli Zaretskii
2019-11-14 9:46 ` Yuri Khan
2019-11-14 11:36 ` Jean-Christophe Helary
2019-11-14 13:55 ` Stefan Monnier
2019-11-14 13:59 ` Noam Postavsky
2019-11-14 14:17 ` Stefan Monnier
2019-11-14 21:44 ` Juanma Barranquero
2019-11-14 14:03 ` Andreas Schwab
2019-11-14 14:10 ` Eli Zaretskii
2019-11-14 17:10 ` Paul Eggert
2019-11-14 18:32 ` Eli Zaretskii
2019-11-14 18:39 ` Eli Zaretskii
2019-11-15 8:32 ` Štěpán Němec
2019-11-15 14:54 ` Robert Pluim
2019-11-15 15:16 ` Eli Zaretskii
2019-11-15 15:32 ` Eli Zaretskii
2019-11-15 15:55 ` Robert Pluim
2019-11-15 16:00 ` Robert Pluim
2019-11-15 16:11 ` Lars Ingebrigtsen
2019-11-15 16:33 ` Robert Pluim
2019-11-15 16:13 ` Eli Zaretskii
2019-11-17 2:15 ` Richard Stallman
2019-11-17 20:02 ` Robert Pluim
2019-11-18 16:25 ` Eli Zaretskii
2019-11-18 16:54 ` Robert Pluim
2019-11-18 17:05 ` Eli Zaretskii
2019-11-20 13:00 ` Robert Pluim
2019-11-20 16:40 ` Eli Zaretskii
2019-11-20 17:09 ` Robert Pluim
2019-11-20 17:45 ` Eli Zaretskii
2019-11-19 6:08 ` Richard Stallman
2019-11-19 9:50 ` Robert Pluim
2019-11-15 15:53 ` Robert Pluim
2019-11-15 16:13 ` Eli Zaretskii
2019-11-15 16:43 ` Robert Pluim
2019-11-15 16:59 ` Eli Zaretskii
2019-11-16 20:40 ` Juri Linkov
2019-11-17 17:34 ` Eli Zaretskii
2019-11-17 21:16 ` Juri Linkov
2019-11-14 22:56 ` Juri Linkov
2019-11-09 16:03 ` Stefan Monnier
2019-11-10 0:22 ` Jean-Christophe Helary
2019-11-10 4:47 ` Stefan Monnier
2019-11-13 23:02 ` Jean-Christophe Helary
2019-11-14 13:52 ` Stefan Monnier
2019-11-14 9:20 ` Eli Zaretskii
2019-11-14 11:35 ` Jean-Christophe Helary
2019-11-14 13:37 ` Noam Postavsky
2019-11-14 14:20 ` Eli Zaretskii
2019-11-15 10:36 ` Jean-Christophe Helary
2019-11-15 13:03 ` Eli Zaretskii
2020-04-28 14:52 ` Jean-Christophe Helary
2020-04-28 15:05 ` Eli Zaretskii
2020-04-28 17:28 ` Paul Eggert
2020-04-28 23:16 ` Jean-Christophe Helary
2020-04-29 0:08 ` Paul Eggert
2020-04-29 0:21 ` Jean-Christophe Helary
2020-04-29 7:08 ` Eli Zaretskii
2020-04-29 8:00 ` Jean-Christophe Helary
2020-04-29 3:23 ` Richard Stallman
2020-04-29 3:49 ` Jean-Christophe Helary [this message]
2020-04-29 3:51 ` Stefan Monnier
2020-04-29 10:09 ` Po Lu
2020-04-30 2:34 ` Richard Stallman
2020-04-30 3:04 ` Stefan Monnier
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