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

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Message-ID: <20141007203344.GA4748@roeck-us.net>
Date:	Tue, 7 Oct 2014 13:33:44 -0700
From:	Guenter Roeck <linux@...ck-us.net>
To:	David Miller <davem@...emloft.net>
Cc:	fabf@...net.be, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH 1/1 net-next] af_unix: remove NULL assignment on static

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
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