From: Barry Margolin <barmar@alum.mit.edu>
To: help-gnu-emacs@gnu.org
Subject: Re: obarray
Date: Tue, 17 Dec 2013 12:32:37 -0500 [thread overview]
Message-ID: <barmar-FDD4D1.12323717122013@news.eternal-september.org> (raw)
In-Reply-To: 87lhzkp4cx.fsf@nl106-137-194.student.uu.se
In article <87lhzkp4cx.fsf@nl106-137-194.student.uu.se>,
Emanuel Berg <embe8573@student.uu.se> wrote:
> Michael Heerdegen <michael_heerdegen@web.de> writes:
>
> > They used a quite exotic name for the symbol so such
> > a collision is unlikely, but strictly speaking, the
> > implementation of dolist is not correct.
>
> I agree, might as well do it fool-proof. If things can
> go wrong, sometime they will.
It's a tradeoff. If you use uninterned symbols, debugging the macro is
harder because you can't easily get the value of the temporaries.
The name they chose is so unlikely that a collision will only happen if
someone is doing it deliberately. We don't worry about such internally
malicious code.
--
Barry Margolin, barmar@alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***
next prev parent reply other threads:[~2013-12-17 17:32 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-15 0:54 obarray Emanuel Berg
2013-12-15 1:14 ` obarray Juanma Barranquero
[not found] ` <mailman.9268.1387070101.10748.help-gnu-emacs@gnu.org>
2013-12-15 1:37 ` obarray Emanuel Berg
2013-12-15 1:56 ` obarray Michael Heerdegen
2013-12-15 1:59 ` obarray Juanma Barranquero
[not found] ` <mailman.9271.1387072648.10748.help-gnu-emacs@gnu.org>
2013-12-15 4:17 ` obarray Emanuel Berg
2013-12-15 4:17 ` obarray Barry Margolin
2013-12-15 4:47 ` obarray Michael Heerdegen
2013-12-15 4:55 ` obarray Emanuel Berg
2013-12-15 6:04 ` obarray Barry Margolin
2013-12-15 17:43 ` obarray Emanuel Berg
2013-12-16 17:44 ` obarray Barry Margolin
2013-12-17 1:47 ` obarray Michael Heerdegen
[not found] ` <mailman.9442.1387244871.10748.help-gnu-emacs@gnu.org>
2013-12-17 2:11 ` obarray Emanuel Berg
2013-12-17 2:55 ` obarray Michael Heerdegen
[not found] ` <mailman.9452.1387248989.10748.help-gnu-emacs@gnu.org>
2013-12-17 3:01 ` obarray Emanuel Berg
2013-12-17 17:32 ` Barry Margolin [this message]
2013-12-17 17:42 ` obarray Emanuel Berg
[not found] ` <mailman.9279.1387082898.10748.help-gnu-emacs@gnu.org>
2013-12-15 5:11 ` obarray Emanuel Berg
2013-12-15 5:36 ` obarray Emanuel Berg
2013-12-15 6:17 ` obarray Michael Heerdegen
[not found] ` <mailman.9283.1387088419.10748.help-gnu-emacs@gnu.org>
2013-12-15 17:51 ` obarray Emanuel Berg
2013-12-15 6:15 ` obarray Michael Heerdegen
[not found] ` <mailman.9282.1387088166.10748.help-gnu-emacs@gnu.org>
2013-12-15 17:47 ` obarray Emanuel Berg
2013-12-15 5:58 ` obarray Barry Margolin
2013-12-15 17:28 ` obarray Emanuel Berg
2013-12-17 14:38 ` obarray jack-mac
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