From: Bernd Petrovitsch <bernd@petrovitsch.priv.at>
To: Julia Lawall <julia@diku.dk>
Cc: Dan Carpenter <error27@gmail.com>,
kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: bug list: assigning negative values to unsigned variables
Date: Wed, 27 Jan 2010 12:09:46 +0100 [thread overview]
Message-ID: <1264590586.9749.2.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.64.1001271155430.20256@ask.diku.dk>
On Mit, 2010-01-27 at 11:57 +0100, Julia Lawall wrote:
> On Wed, 27 Jan 2010, Dan Carpenter wrote:
>
> > Fixing the places which assign negative values to unsigned variables is a good janitor task.
>
> I had the impression that assignment to -1 was done sometimes as a
> portable way to initialize the variable to 0xffff (for any number of f's).
> So perhaps it is not so trivial to fix.
Any particular reason that ~0U, ~0UL, and ~0ULL shouldn't do the same
(without relying on conversion from signed to unsigned)?
Bernd
--
Bernd Petrovitsch Email : bernd@petrovitsch.priv.at
LUGA : http://www.luga.at
next prev parent reply other threads:[~2010-01-27 11:39 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-27 10:40 bug list: assigning negative values to unsigned variables Dan Carpenter
2010-01-27 10:57 ` Julia Lawall
2010-01-27 11:09 ` Bernd Petrovitsch [this message]
2010-01-27 12:30 ` Julia Lawall
2010-01-27 14:12 ` Bernd Petrovitsch
2010-01-27 14:44 ` Al Viro
2010-01-27 11:13 ` Dan Carpenter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1264590586.9749.2.camel@localhost \
--to=bernd@petrovitsch.priv.at \
--cc=error27@gmail.com \
--cc=julia@diku.dk \
--cc=kernel-janitors@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox