GNU bug report logs - #716
23.0.60; opening tgz file causes emacs crash

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Packages: w32, emacs;

Reported by: robert marshall <robert.marshall <at> tnei.co.uk>

Date: Thu, 14 Aug 2008 09:15:04 UTC

Severity: grave

Merged with 805, 899, 1088

Done: Jason Rumney <jasonr <at> gnu.org>

Bug is archived. No further changes may be made.

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From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: jasonr <at> f2s.com
Cc: 716 <at> debbugs.gnu.org, Magnus Henoch <mange <at> freemail.hr>
Subject: bug#716: Bug in buffer-swap-text
Date: Tue, 23 Dec 2008 21:41:22 -0500

>> Your analysis sounds right, thank you.  I'd suggest to use another
>> r_alloc primitve, something like r_alloc_reset_variable, so you could do

> I've adapted your suggestion so it does not remove the consistency check in
> find_bloc (instead it does a non-checking find inline):

Thanks.  After your email, I thought we could just change
r_alloc_reset_variable to take 2 arguments: the old ptr and the
new ptr.  This way, you get more consistency checking.

BTW, if the double check (p->variable == ptr && p->data == *ptr) is
there for consistency, it would be good to add a comment about it.

Better yet: make it a real consistency check, along the lines of

  assert (*p->variable == p->data);

so it's not just checked for `ptr', but for all blocs visited in the loop.


        Stefan
This bug report was last modified 16 years and 153 days ago.

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