all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: Richard Stallman <rms@gnu.org>
To: Dmitry Antipov <dmantipov@yandex.ru>
Cc: emacs-devel@gnu.org
Subject: Re: GC: marking traversal and pure symbols
Date: Fri, 06 Jul 2007 00:38:19 -0400	[thread overview]
Message-ID: <E1I6faF-0006LC-3p@fencepost.gnu.org> (raw)
In-Reply-To: <468CEDAF.20706@yandex.ru> (message from Dmitry Antipov on Thu, 05 Jul 2007 17:10:07 +0400)

We can't make Qnil pure, because its plist can be written.
(It can also be defined as a function, though that would be an
ugly thing to do.)

However, we could make Qunbound pure, since it is just a token, not a
real symbol.  It is used only for EQ comparisons at C level.

Would someone like to try that?

  reply	other threads:[~2007-07-06  4:38 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-05 13:10 GC: marking traversal and pure symbols Dmitry Antipov
2007-07-06  4:38 ` Richard Stallman [this message]
2007-07-06  7:20   ` David Kastrup
2007-07-06  9:29     ` Andreas Schwab
2007-07-07 13:06     ` Richard Stallman
2007-07-06 12:02   ` Ken Raeburn
2007-07-06 12:33     ` Andreas Schwab

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

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=E1I6faF-0006LC-3p@fencepost.gnu.org \
    --to=rms@gnu.org \
    --cc=dmantipov@yandex.ru \
    --cc=emacs-devel@gnu.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. 
Code repositories for project(s) associated with this external index

	https://git.savannah.gnu.org/cgit/emacs.git
	https://git.savannah.gnu.org/cgit/emacs/org-mode.git

This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.