linux-kernel - Re: [PATCH 1/1 net-next] af_unix: remove NULL assignment on static

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Message-ID: <1559212122.19553.1412714971908.open-xchange@webmail.nmp.skynet.be>
Date:	Tue, 7 Oct 2014 22:49:31 +0200 (CEST)
From:	Fabian Frederick <fabf@...net.be>
To:	Guenter Roeck <linux@...ck-us.net>,
	David Miller <davem@...emloft.net>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1 net-next] af_unix: remove NULL assignment on static



> On 07 October 2014 at 22:33 Guenter Roeck <linux@...ck-us.net> wrote:
>
>
> On Tue, Oct 07, 2014 at 04:18:32PM -0400, David Miller wrote:
> > From: Fabian Frederick <fabf@...net.be>
> > Date: Tue,  7 Oct 2014 22:16:36 +0200
> >
> > > static values are automatically initialized to NULL
> > >
> > > Signed-off-by: Fabian Frederick <fabf@...net.be>
> >
> > Isn't there some implementation room given to compilers
> > as to the representation of true and false?
>
> Not for true/false.
>
> C99 standard, section 7.16:
>
> ...
> The remaining three macros are suitable for use in #if preprocessing
> directives. They are
>
> true
>
> which expands to the integer constant 1,
>
> false
>
> which expands to the integer constant 0, and
> ...
>
> No idea where the NULL comes into the picture, though.
>
> Guenter

Maybe comment should have been "static values are automatically initialized to
0" then ?

Regards,
Fabian
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