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

From: Andreas Schwab <schwab <at> linux-m68k.org>
To: Stefan Monnier <monnier <at> iro.umontreal.ca>
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 18:04:53 +0200

Stefan Monnier <monnier <at> iro.umontreal.ca> writes:

> BTW, AFAIK
>
>    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.

Andreas.

-- 
Andreas Schwab, schwab <at> linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756  01D3 44D5 214B 8276 4ED5
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This bug report was last modified 10 years and 258 days ago.

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