From: Eli Zaretskii <eliz@gnu.org>
To: "Jan Djärv" <jan.h.d@swipnet.se>
Cc: dak@gnu.org, emacs-devel@gnu.org
Subject: Re: Intervals crash
Date: Mon, 27 Sep 2010 04:34:19 -0400 [thread overview]
Message-ID: <E1P09AB-0003Fz-6Q@fencepost.gnu.org> (raw)
In-Reply-To: <4CA04AFB.5060302@swipnet.se> (message from Jan Djärv on Mon, 27 Sep 2010 09:42:51 +0200)
> From: Jan Djärv <jan.h.d@swipnet.se>
> Cc: emacs-devel@gnu.org
>
> There are only 77 places where EMACS_UINT occurs in the Emacs
> sources.
73, to be exact. The rest are #define's and #ifndef's related to the
definition of EMACS_UINT itself; they don't count. #define XUINT
should probably also be excluded, as it doesn't really "use"
EMACS_UINT.
> Most of them are casts to and from pointers, and some are sizes
> (like in Lisp_Vector). It would not be a big job to get rid of them
> if that is what we want.
We can get rid of almost all of them, if we believe that size_t and
EMACS_UINT are always of the same size. I'm not sure we want to make
that assumption, though, since lisp.h does allow for external
definition of EMACS_UINT by some s/*.h or m/*.h file.
In any case, I think we cannot get rid of using an unsigned data type
in most of the 70+ places we do now, because of one or more of the
following reasons:
. the value is a bit mask or a bit map
. the value is a pointer that is subject to bitwise operations
. the value is an unsigned data type forced by external hardware or
software API
next prev parent reply other threads:[~2010-09-27 8:34 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-23 18:23 Intervals crash Chong Yidong
2010-09-23 18:52 ` Chong Yidong
2010-09-23 19:01 ` Eli Zaretskii
2010-09-23 19:09 ` Chong Yidong
2010-09-23 19:32 ` Eli Zaretskii
2010-09-23 18:57 ` Eli Zaretskii
2010-09-24 6:12 ` Stephen J. Turnbull
2010-09-24 8:16 ` Eli Zaretskii
2010-09-24 8:52 ` Stephen J. Turnbull
2010-09-24 10:03 ` Eli Zaretskii
2010-09-25 14:34 ` Stephen J. Turnbull
2010-09-25 16:10 ` Eli Zaretskii
2010-09-25 18:54 ` Stephen J. Turnbull
2010-09-25 22:07 ` Eli Zaretskii
2010-09-26 13:08 ` Stephen J. Turnbull
2010-09-26 19:22 ` Miles Bader
2010-09-26 19:33 ` David Kastrup
2010-09-27 4:53 ` Stephen J. Turnbull
2010-09-27 6:55 ` David Kastrup
2010-09-27 7:42 ` Jan Djärv
2010-09-27 8:34 ` Eli Zaretskii [this message]
2010-09-27 9:02 ` David Kastrup
2010-09-27 11:02 ` Eli Zaretskii
2010-09-27 8:36 ` Eli Zaretskii
2010-09-27 8:50 ` Stephen J. Turnbull
2010-09-27 9:39 ` David Kastrup
2010-09-27 9:45 ` Lars Magne Ingebrigtsen
2010-09-27 10:11 ` Stephen J. Turnbull
2010-09-24 10:31 ` Eli Zaretskii
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