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Date: Thu, 8 Jul 2004 13:44:59 +0200
From: Martin Zwickel <martin.zwickel@technotrend.de>
To: Michael Buesch <mbuesch@freenet.de>
Cc: root@chaos.analogic.com, Herbert Xu <herbert@gondor.apana.org.au>,
       Chris Wright <chrisw@osdl.org>, akpm@osdl.org, torvalds@osdl.org,
       linux-kernel@vger.kernel.org, sds@epoch.ncsc.mil, jmorris@redhat.com,
       mika@osdl.org
Subject: Re: [PATCH] Use NULL instead of integer 0 in security/selinux/
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On Thu, 8 Jul 2004 13:28:38 +0200
Michael Buesch <mbuesch@freenet.de> bubbled:

> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: SHA1
> 
> Quoting "Richard B. Johnson" <root@chaos.analogic.com>:
> > Because NULL is a valid pointer value. 0 is not. If you were
> > to make 0 valid, you would use "(void *)0", which is what
> > NULL just happens to be in all known architectures so far,
> > although that could change in an alternate universe.
> 
> No, that is not true.
> In C/C++ this is true:
> NULL == 0


hmm...

include/linux/stddef.h:

#undef NULL
#if defined(__cplusplus)
#define NULL 0
#else
#define NULL ((void *)0)
#endif

-- 
MyExcuse:
fractal radiation jamming the backbone

Martin Zwickel <martin.zwickel@technotrend.de>
Research & Development

TechnoTrend AG <http://www.technotrend.de>

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