Re: Some cleanup patches for: '...lvalues is deprecated'

[Jon Oberheide <jon@oberheide.org>]

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On Tue, 2004-07-27 at 17:59 +0200, Joel Soete wrote:
> Marcelo,
> 
> Thanks first for your attention.
> Sorry also for delaying this works but I was a bit busy elsewhere.
> 
> > -- Original Message --
> > Date: Tue, 27 Jul 2004 09:54:32 -0300
> > From: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
> > To: Joel Soete <soete.joel@tiscali.be>
> > Cc: Daniel Jacobowitz <dan@debian.org>,
> > 	Vojtech Pavlik <vojtech@suse.cz>,
> > 	Linux Kernel <linux-kernel@vger.kernel.org>
> > Subject: Re: Some cleanup patches for: '...lvalues is deprecated'
> > 
> > 
> > On Mon, Jul 05, 2004 at 01:59:21PM +0200, Joel Soete wrote:
> > > Hello Daniel,
> > > 
> > > > > So just use
> > > > >
> > > > > 	buffer++;
> > > > >
> > > > > here, and the intent is then clear.
> 
> > > >
> > > > Except C does not actually allow incrementing a void pointer, since
> > > > void does not have a size.
> > > That make better sense to me because aifair a void * was foreseen to
> pass
> > > any kind of type * as actual parameter?
> > > (So as far as I understand, the aritthm pointer sould be dynamic for
> the
> > > best 'natural' behaviour?)
> > > 
> > > >   You can't do arithmetic on one either.  GNU
> > > > C allows this as an extension.
> > > >
> > > > It's actually this, IIRC:
> > > >   buffer = ((char *) buffer) + 1;
> > 
> > Joel, 
> > 
> > It seems the current code is working perfectly, generating correct
> > asm code. 
> > 
> > Could you come up with a good enough reason to do this cleanup (as far
> as
> > 
> > I am concerned) in 2.4.x series?
> > 
> My first attention was to cleanup some warning of type "use of cast expression
> as lvalue is deprecated"
> with gcc-3.3.4. But afaik, right now, there are just few warning which didn't
> break the asm code.

FYI, lvalue casts are treated as errors in gcc 3.5.

Regards,
Jon Oberheide

-- 
Jon Oberheide <jon@oberheide.org>
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