unofficial mirror of help-gnu-emacs@gnu.org
 help / color / mirror / Atom feed
From: Lars Brinkhoff <lars@nocrew.org>
Subject: Re: Object identity
Date: 21 Oct 2003 22:13:20 +0200	[thread overview]
Message-ID: <85wuay8i3j.fsf@junk.nocrew.org> (raw)
In-Reply-To: jwvoewa5pne.fsf-monnier+gnu.emacs.help@vor.iro.umontreal.ca

Stefan Monnier <monnier@iro.umontreal.ca> writes:
> > Well, either I need weak hash tables, or a different implementation
> > of object-identity.
> Given your particular situation, you can just flush your hash-table at the
> end of print-unreadable-object, so it does not even need to be weak.

Yes, but that would print eq objects differently between two
subsequent calls to print-unreadable-object, which probably would
confuse the user.  I might almost as well print "0" for all object
identities.

Flushing somewhat less often (for some value of "less") would be good
enough, I think.  It's not like all objects are in the hash table, so
the memory overhead isn't large.

-- 
Lars Brinkhoff,         Services for Unix, Linux, GCC, HTTP
Brinkhoff Consulting    http://www.brinkhoff.se/

  reply	other threads:[~2003-10-21 20:13 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <mailman.2049.1066716515.21628.help-gnu-emacs@gnu.org>
2003-10-21 15:09 ` Object identity Stefan Monnier
2003-10-21 16:55   ` Stefan Monnier
2003-10-21 19:00   ` Lars Brinkhoff
     [not found]   ` <mailman.2095.1066762882.21628.help-gnu-emacs@gnu.org>
2003-10-21 19:27     ` Barry Margolin
2003-10-21 19:49       ` Lars Brinkhoff
     [not found]       ` <mailman.2101.1066765792.21628.help-gnu-emacs@gnu.org>
2003-10-21 19:56         ` Barry Margolin
2003-10-22  7:35           ` Lars Brinkhoff
2003-10-21 15:44 ` Barry Margolin
2003-10-21 16:09   ` Stefan Monnier
2003-10-21 16:19     ` Barry Margolin
2003-10-21 16:50       ` Stefan Monnier
2003-10-21 17:19         ` Barry Margolin
2003-10-21 17:42   ` Lars Brinkhoff
     [not found]   ` <mailman.2089.1066758667.21628.help-gnu-emacs@gnu.org>
2003-10-21 19:59     ` Stefan Monnier
2003-10-21 20:13       ` Lars Brinkhoff [this message]
     [not found]       ` <mailman.2104.1066767237.21628.help-gnu-emacs@gnu.org>
2003-10-21 21:22         ` Stefan Monnier
2003-10-21 21:39           ` Barry Margolin
2003-10-21  6:07 Lars Brinkhoff
2003-10-26 17:30 ` jan
2003-10-26 22:45   ` jan

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=85wuay8i3j.fsf@junk.nocrew.org \
    --to=lars@nocrew.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).