From: Marcin Borkowski <mbork@mbork.pl>
To: help-gnu-emacs@gnu.org
Subject: Re: Are two symbols `equal' iff they are `eq'?
Date: Sun, 09 Aug 2015 17:10:06 +0200 [thread overview]
Message-ID: <87si7s5whd.fsf@mbork.pl> (raw)
In-Reply-To: <871tfctv49.fsf@web.de>
On 2015-08-09, at 16:05, Michael Heerdegen <michael_heerdegen@web.de> wrote:
> Marcin Borkowski <mbork@mbork.pl> writes:
>
>> And inspecting the code didn't help me a lot - that was the second thing
>> I tried (the first being checking the docs), but I didn't understand
>> it. It seems there's a case dispatch, but I didn't see the branch
>> responsible for symbols.
>
> I guess you missed the "then" branch of the "if (depth > 10)" clause.
???
The "then" part seems to contain the "case" I mentioned. After that,
there is this:
tail_recurse:
QUIT;
if (EQ (o1, o2))
return 1;
From the capitalization I would guess that QUIT is a C macro. From its
name I would guess that anything after it is irrelevant;-). Well,
joking aside, I found its definition in the source; do I get it right
that it quits if something like C-g happens? If yes, I'd be curious why
it is here. Apart from that, it seems that I was right: `equal' for
symbols just calls `eq' (C EQ, not Lisp eq, to be more precise).
So I guess I found the answer. Thanks for your help!
> Michael.
Best,
--
Marcin Borkowski
http://octd.wmi.amu.edu.pl/en/Marcin_Borkowski
Faculty of Mathematics and Computer Science
Adam Mickiewicz University
next prev parent reply other threads:[~2015-08-09 15:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <mailman.7993.1439079676.904.help-gnu-emacs@gnu.org>
2015-08-09 0:31 ` Are two symbols `equal' iff they are `eq'? Joost Kremers
2015-08-09 5:16 ` Ian Zimmerman
2015-08-09 7:30 ` Marcin Borkowski
2015-08-09 14:05 ` Michael Heerdegen
2015-08-09 15:10 ` Marcin Borkowski [this message]
2015-08-09 15:19 ` Eli Zaretskii
2015-08-09 15:45 ` Marcin Borkowski
2015-08-09 18:19 ` Eli Zaretskii
2015-08-09 19:41 ` Marcin Borkowski
2015-08-10 15:26 ` Nicolas Richard
[not found] ` <mailman.8007.1439097407.904.help-gnu-emacs@gnu.org>
2015-08-09 5:21 ` Rusi
2015-08-09 5:33 ` Ian Zimmerman
2015-08-09 7:42 ` Marcin Borkowski
2015-08-09 14:03 ` Michael Heerdegen
2015-08-09 14:42 ` Marcin Borkowski
2015-08-09 14:47 ` Michael Heerdegen
[not found] ` <mailman.8011.1439106166.904.help-gnu-emacs@gnu.org>
2015-08-09 15:38 ` Joost Kremers
2015-08-09 0:20 Marcin Borkowski
2015-08-09 1:52 ` Emanuel Berg
2015-08-09 7:44 ` Marcin Borkowski
2015-08-09 15:28 ` Drew Adams
2015-08-09 15:46 ` Marcin Borkowski
2015-08-09 16:38 ` Drew Adams
[not found] ` <mailman.8032.1439135226.904.help-gnu-emacs@gnu.org>
2015-08-09 15:59 ` Stefan Monnier
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