linux-kernel - Re: gcc fixed size char array initialization bug

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Message-ID: <46B269FC.6020309@gmail.com>
Date:	Fri, 03 Aug 2007 01:34:20 +0200
From:	Rene Herman <rene.herman@...il.com>
To:	Guennadi Liakhovetski <g.liakhovetski@....de>
CC:	Randy Dunlap <rdunlap@...otime.net>,
	Robert Hancock <hancockr@...w.ca>,
	Stefan Richter <stefanr@...6.in-berlin.de>,
	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org
Subject: Re: gcc fixed size char array initialization bug - known?

On 08/03/2007 01:26 AM, Guennadi Liakhovetski wrote:

> On Thu, 2 Aug 2007, Randy Dunlap wrote:
> 
>> C99 spec that Al referred you to (available for around US$18 as a pdf) 
>> says in 6.7.8, para. 14 (where Al said):
>> 
>> "An array of character type may be initialized by a character string
>> literal, optionally enclosed in braces. Successive characters of the
>> character string literal (including the terminating null character if
>> there is room or if the array is of unknown size) initialize the 
>> elements of the array."
> 
> Wow... So, the terminating '\0' in the string constant IS "special" and 
> "optional"... Ok, then, THIS does answer my question, THIS I can 
> understand, and, ghm, accept...
> 
> Thanks to all who tried to explain this to me and sorry it took so
> long...

Ah come on, it would be great fun to now make the argument that that quoted 
bit doesn't actually say wat should happen when there's _no_ room for the 
terminating null character...

Rene.
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