GNU bug report logs - #8545
issues with recent doprnt-related changes

Previous Next

Full log

Message #135 received at 8545 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Paul Eggert <eggert <at> cs.ucla.edu>, Stefan Monnier <monnier <at> iro.umontreal.ca>
Cc: 8545 <at> debbugs.gnu.org, emacs-devel <at> gnu.org
Subject: Re: issues with recent doprnt-related changes
Date: Thu, 05 May 2011 23:36:49 +0300

> Date: Wed, 04 May 2011 07:56:43 -0700
> From: Paul Eggert <eggert <at> cs.ucla.edu>
> CC: 8545 <at> debbugs.gnu.org, Emacs Development <emacs-devel <at> gnu.org>
> 
> On 05/04/11 02:52, Eli Zaretskii wrote:
> >> It seems from that discussion that strings can contain MOST_POSITIVE_FIXNUM bytes.
> > I think the conclusion was that it can contain MOST_POSITIVE_FIXNUM
> > _including_the_terminating_null_.
> 
> Hmm, that's not how I read
> <http://lists.gnu.org/archive/html/emacs-devel/2011-04/msg00923.html>.
> 
> I understood the argument to be that a buffer must contain at most
> MOST_POSITIVE_FIXNUM - 1 bytes due to other reasons, but it's OK
> to have "a string whose length is MOST_POSITIVE_FIXNUM", i.e.,
> (= (length STRING) most-positive-fixnum), because we already check
> buffer sizes before inserting strings.  If you
> count the trailing byte, the length of the underlying C character
> array would be MOST_POSITIVE_FIXNUM + 1.

Stefan, could you please chime in?

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.