Date: Sat, 9 Aug 2003 20:44:57 +0100
From: Jamie Lokier <jamie@shareable.org>
To: Chip Salzenberg <chip@pobox.com>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: NULL.  Again.  (was Re: [PATCH] 2.4.22pre10: {,un}likely_p())
Message-ID: <20030809194457.GB30204@mail.jlokier.co.uk>
References: <1060087479.796.50.camel@cube> <20030809002117.GB26375@mail.jlokier.co.uk> <20030809081346.GC29616@alpha.home.local> <20030809015142.56190015.davem@redhat.com> <1060425774.4933.73.camel@dhcp22.swansea.linux.org.uk> <20030809162332.GB29647@mail.jlokier.co.uk> <20030809173001.GG24349@perlsupport.com>
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Chip Salzenberg wrote:
> According to Jamie Lokier:
> > Not just K&R.  These are different because of varargs:
> > 	printf ("%p", NULL);
> > 	printf ("%p", 0);
> 
> *SIGH*  I thought incorrect folk wisdom about NULL and zero and pointer
> conversions had long since died out.  More fool I.  Please, *please*,
> _no_one_else_ argue about NULL/zero/false etc. until after reading this:
> 
>   ===[[  http://www.eskimo.com/~scs/C-faq/s5.html  ]]===

Thanks Chip; I am much enlightened.  That is a fine URL.

To onlookers: neither of those printf statements is portable :)

-- Jamie

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