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Date:      Thu, 24 Mar 2005 16:08:40 -0500
From:      John Baldwin <jhb@FreeBSD.org>
To:        Stefan Farfeleder <stefan@fafoe.narf.at>
Cc:        cvs-all@FreeBSD.org
Subject:   Re: cvs commit: src/sys/compat/linux linux_ioctl.c
Message-ID:  <200503241608.40625.jhb@FreeBSD.org>
In-Reply-To: <20050324210504.GL46915@wombat.fafoe.narf.at>
References:  <200503241751.j2OHpFQg063306@repoman.freebsd.org> <200503241555.59177.jhb@FreeBSD.org> <20050324210504.GL46915@wombat.fafoe.narf.at>

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On Thursday 24 March 2005 04:05 pm, Stefan Farfeleder wrote:
> On Thu, Mar 24, 2005 at 03:55:59PM -0500, John Baldwin wrote:
> > On Thursday 24 March 2005 03:19 pm, Brooks Davis wrote:
> > > On Thu, Mar 24, 2005 at 09:09:43PM +0100, Stefan Farfeleder wrote:
> > > > On Thu, Mar 24, 2005 at 12:02:10PM -0800, Brooks Davis wrote:
> > > > > Prior to C99, I think #error wasn't specified.  C99 does specify
> > > > > it.
> > > >
> > > > C89/90 had #error too.
> > >
> > > I stand corrected.  Now that I think about it, all but the perverse
> > > preprocessors would implement #error just by blowing up on an unknown
> > > directive so even that isn't an issue.  In any case, I've made the
> > > change and the new code is at least shorter.  It's really only there
> > > for people mucking with kernel internals who should be able to figure
> > > out what it means.
> >
> > We could always just change CTASSERT() to use #error if that is better.
>
> Unfortunately you can't use preprocessor directives in the replacement
> list of a macro.

Ah, doh.

-- 
John Baldwin <jhb@FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org



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