GNU bug report logs - #9960
Compiling Emacs trunk with MSVC

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Packages: w32, emacs;

Reported by: Eli Zaretskii <eliz <at> gnu.org>

Date: Sat, 5 Nov 2011 11:24:02 UTC

Severity: normal

Done: Eli Zaretskii <eliz <at> gnu.org>

Bug is archived. No further changes may be made.

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Message #203 received at 9960 <at> debbugs.gnu.org (full text, mbox):

From: Eli Zaretskii <eliz <at> gnu.org>
To: Juanma Barranquero <lekktu <at> gmail.com>
Cc: cschol2112 <at> googlemail.com, fabrice.popineau <at> supelec.fr,
	monnier <at> iro.umontreal.ca, 9960 <at> debbugs.gnu.org
Subject: Re: bug#9960: Compiling Emacs trunk with MSVC
Date: Mon, 21 Nov 2011 08:56:50 -0500

> From: Juanma Barranquero <lekktu <at> gmail.com>
> Date: Mon, 21 Nov 2011 13:14:33 +0100
> Cc: monnier <at> iro.umontreal.ca, cschol2112 <at> googlemail.com, 
> 	fabrice.popineau <at> supelec.fr, 9960 <at> debbugs.gnu.org
> 
> On Mon, Nov 21, 2011 at 04:51, Eli Zaretskii <eliz <at> gnu.org> wrote:
> 
> > The hidden assumption is that a long and a pointer are of the same
> > width.  This is true on 32-bit hosts and on 64-bit Posix hosts (which
> > have the LP64 architecture), but not on 64-bit Windows, where long is
> > a 32-bit data type, but a pointer is 64-bit wide.
> 
> Aha, I see. So Fabrice is right: the code should not assume that, and
> mixed uses of long/pointer will have to be "fixed".

One way of fixing that would be to use ptrdiff_t instead of long, I
think.
This bug report was last modified 13 years and 61 days ago.

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