From: Eli Zaretskii <eliz@gnu.org>
To: Julien Danjou <julien@danjou.info>
Cc: jan.h.d@swipnet.se, monnier@iro.umontreal.ca, emacs-devel@gnu.org
Subject: Re: Type-error in C code
Date: Fri, 12 Nov 2010 17:48:14 +0200 [thread overview]
Message-ID: <83oc9uee69.fsf@gnu.org> (raw)
In-Reply-To: <sa3pquabls5.fsf@cigue.easter-eggs.fr>
> From: Julien Danjou <julien@danjou.info>
> Date: Fri, 12 Nov 2010 16:32:10 +0100
> Cc: Stefan Monnier <monnier@iro.umontreal.ca>, emacs-devel@gnu.org
>
> It seems we can store 32 bits unsigned using XSETFASTINT.
No.
> for (iter = data; CONSP (iter); iter = XCDR (iter))
> {
> Lisp_Object o = XCAR (iter);
>
> if (INTEGERP (o))
> val = (long) XFASTINT (o);
> --8<---------------cut here---------------end--------------->8---
>
> So IIUC, we could use XSETFASTINT to store the atom. Am I wrong?
Yes, you are wrong. You should only use XSETFASTINT if you know the
value will not overflow a Lisp integer.
In a nutshell, nothing can work around the basic limitation that only
integer values smaller or equal to most-positive-fixnum can be put
into a Lisp integer.
next prev parent reply other threads:[~2010-11-12 15:48 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-11-12 14:02 Type-error in C code Stefan Monnier
2010-11-12 14:21 ` Julien Danjou
2010-11-12 15:12 ` Jan Djärv
2010-11-12 15:22 ` Julien Danjou
2010-11-12 15:28 ` Julien Danjou
2010-11-12 15:32 ` Julien Danjou
2010-11-12 15:48 ` Eli Zaretskii [this message]
2010-11-12 15:58 ` Julien Danjou
2010-11-12 16:06 ` John Yates
2010-11-12 16:20 ` Eli Zaretskii
2010-11-12 16:47 ` Andreas Schwab
2010-11-12 19:44 ` Miles Bader
2010-11-12 15:48 ` Eli Zaretskii
2010-11-12 17:13 ` Jan D.
2010-11-12 21:15 ` Thien-Thi Nguyen
2010-11-13 19:19 ` Jan Djärv
2010-11-13 19:52 ` Thien-Thi Nguyen
2010-11-13 22:23 ` Jan Djärv
2010-11-13 20:38 ` Johan Bockgård
2010-11-14 10:21 ` Jan Djärv
2010-11-12 18:45 ` Andreas Schwab
2010-11-12 21:00 ` Stefan Monnier
2010-11-15 21:11 ` Julien Danjou
2010-11-15 21:19 ` Andreas Schwab
2010-11-16 5:43 ` Stefan Monnier
2010-11-16 7:56 ` Julien Danjou
2010-11-16 9:05 ` Stephen J. Turnbull
2010-11-16 9:28 ` Julien Danjou
2010-11-16 12:11 ` Stephen J. Turnbull
2010-11-16 15:14 ` Stefan Monnier
2010-11-16 15:38 ` Julien Danjou
2010-11-16 17:05 ` Stefan Monnier
2010-11-16 9:36 ` Andreas Schwab
2010-11-13 20:00 ` Julien Danjou
2010-11-15 16:08 ` Stefan Monnier
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