GNU bug report logs - #18410
Use SAFE_ALLOCA etc. to avoid unbounded stack allocation.

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Package: emacs;

Reported by: Paul Eggert <eggert <at> cs.ucla.edu>

Date: Fri, 5 Sep 2014 06:10:02 UTC

Severity: wishlist

Tags: patch

Done: Paul Eggert <eggert <at> cs.ucla.edu>

Bug is archived. No further changes may be made.

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Message #26 received at 18410 <at> debbugs.gnu.org (full text, mbox):

From: Stefan Monnier <monnier <at> iro.umontreal.ca>
To: Andreas Schwab <schwab <at> linux-m68k.org>
Cc: Dmitry Antipov <dmantipov <at> yandex.ru>, 18410 <at> debbugs.gnu.org,
 Paul Eggert <eggert <at> cs.ucla.edu>
Subject: Re: bug#18410: Use SAFE_ALLOCA etc. to avoid unbounded stack
 allocation.
Date: Fri, 05 Sep 2014 13:22:21 -0400

>> Lisp_Object result = unbind_to (count, Fsome_func ());
>> can always be written
>> Lisp_Object result = Fsome_func ();
>> unbind_to (count, Qnil);
> Only if the result is already protected, since unbind_to can GC.

Indeed, if you need GCPRO, then it's not necessarily true any more.


        Stefan
This bug report was last modified 10 years and 258 days ago.

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