From: Andreas Schwab <schwab@linux-m68k.org>
To: Stefan Monnier <monnier@iro.umontreal.ca>
Cc: "Julien Danjou" <julien@danjou.info>,
"Jan Djärv" <jan.h.d@swipnet.se>,
emacs-devel@gnu.org
Subject: Re: Type-error in C code
Date: Fri, 12 Nov 2010 19:45:57 +0100 [thread overview]
Message-ID: <m24obm8joa.fsf@igel.home> (raw)
In-Reply-To: <jwv4obmodah.fsf-monnier+emacs@gnu.org> (Stefan Monnier's message of "Fri, 12 Nov 2010 09:02:10 -0500")
Stefan Monnier <monnier@iro.umontreal.ca> writes:
> The error is to put an "Atom" into a cons cell: those can only hold
> Lisp_Objects. The usual compilation flags won't catch the error because
> both types are actually some kind of integer, but if you
> compile --enable-use-lisp-union-type, the C compiler will
> dutyfully burp.
I think we should remove the union Lisp_Object, and instead define a
struct Lisp_Object { EMACS_INT i; } (reusing the macros of the non-union
type), and make that the default Lisp_Object at least during
development.
Andreas.
--
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2010-11-12 18:45 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
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 [this message]
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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