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From: Eli Zaretskii <eliz@gnu.org>
To: help-gnu-emacs@gnu.org
Subject: Re: Are two symbols `equal' iff they are `eq'?
Date: Sun, 09 Aug 2015 18:19:11 +0300	[thread overview]
Message-ID: <83tws8pk0g.fsf@gnu.org> (raw)
In-Reply-To: <87si7s5whd.fsf@mbork.pl>

> From: Marcin Borkowski <mbork@mbork.pl>
> Date: Sun, 09 Aug 2015 17:10:06 +0200
> 
>  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?

Yes.

> If yes, I'd be curious why it is here.

To allow the user to interrupt a (potentially) long operation.

> Apart from that, it seems that I was right: `equal' for
> symbols just calls `eq' (C EQ, not Lisp eq, to be more precise).

What else could it possibly do?



  reply	other threads:[~2015-08-09 15:19 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
2015-08-09 15:19           ` Eli Zaretskii [this message]
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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