linux-kernel - Re: [PATCH v4 01/12] vsprintf: factorize "(null)" string

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Message-ID: <alpine.LSU.2.00.0911081630180.26458@obet.zrqbmnf.qr>
Date:	Sun, 8 Nov 2009 16:37:54 +0100 (CET)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	André Goddard Rosa <andre.goddard@...il.com>
cc:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v4 01/12] vsprintf: factorize "(null)" string


Stripping the humongous Cc list for sanity.


On Saturday 2009-11-07 16:16, André Goddard Rosa wrote:

>Change "<NULL>" to "(null)" and make it a static const char[] hoping that
>the compiler will make null_str a label to a read-only area containing it.

Hoping? Nah, thanks.

>See:
>http://udrepper.livejournal.com/13851.html

Ulrich's example already _has_ a variable that is then changed from 
const char * to const char[]. Of course doing that will save you the 
extra pointer.

But vsprintf.c on the other hand did not have that extra variable to 
begin with! But it is ok nevertheless, and the unification of <NULL> vs 
(null) is worthwhile.
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