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

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Message-ID: <1412713575.11600.4.camel@localhost>
Date:	Tue, 07 Oct 2014 22:26:15 +0200
From:	Hannes Frederic Sowa <hannes@...essinduktion.org>
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 Di, 2014-10-07 at 16:18 -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?

No, the standard requests implementations to implement false as 0 and
true as 1.

In case of assignments e.g. INT_MAX to _Bool (=bool) it will implicitly
converted to 1, so one can omit the often used !! with booleans.

Bye,
Hannes



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