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From: Richard Stallman <rms@gnu.org>
To: Daniel Colascione <dan.colascione@gmail.com>
Cc: emacs-devel@gnu.org, schwab@linux-m68k.org,
	monnier@iro.umontreal.ca, sdl.web@gmail.com
Subject: Re: How and when to use GCPRO?
Date: Tue, 28 Dec 2010 12:07:02 -0500	[thread overview]
Message-ID: <E1PXd0o-00030Q-Cq@fencepost.gnu.org> (raw)
In-Reply-To: <4D195B6D.2060305@gmail.com> (message from Daniel Colascione on Mon, 27 Dec 2010 19:37:17 -0800)

There is a simple general rule for which Emacs C functions can GC:
those that can directly or indirectly call eval.  To make Fcar call
eval would be a rather shocking and drastic change.  There is no need
to take precautions today against the possibility of such a drastic
change in the future.


-- 
Richard Stallman
President, Free Software Foundation
51 Franklin St
Boston MA 02110
USA
www.fsf.org, www.gnu.org



  parent reply	other threads:[~2010-12-28 17:07 UTC|newest]

Thread overview: 19+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-12-27  9:21 How and when to use GCPRO? Leo
2010-12-27 10:15 ` Andreas Schwab
2010-12-27 10:38   ` Leo
2010-12-27 11:17     ` Andreas Schwab
2010-12-27 16:00   ` Stefan Monnier
2010-12-27 17:51     ` Andreas Schwab
2010-12-28  1:01       ` Stefan Monnier
2010-12-28  1:33         ` Daniel Colascione
2010-12-28  2:17           ` Stefan Monnier
2010-12-28  3:37             ` Daniel Colascione
2010-12-28  4:15               ` Stefan Monnier
2010-12-28  4:36                 ` Conservative scanning (was: Re: How and when to use GCPRO?) Daniel Colascione
2010-12-28 17:07               ` Richard Stallman [this message]
2010-12-27 19:15     ` How and when to use GCPRO? Leo
2010-12-27 19:26     ` Common Lisp like feature expressions (was: How and when to use GCPRO?) Leo
2010-12-27 19:38       ` Andreas Schwab
2010-12-27 19:57         ` Leo
2010-12-28  1:01           ` Common Lisp like feature expressions Stefan Monnier
2010-12-28 15:26             ` Leo

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