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Date: Thu, 29 Mar 2007 10:39:10 -0400
From: Bill Davidsen <davidsen@tmr.com>
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To: eranian@hpl.hp.com
CC: Folkert van Heusden <folkert@vanheusden.com>,
       Vignesh Babu BM <vignesh.babu@wipro.com>, linux-kernel@vger.kernel.org,
       akpm@linux-foundation.org, ak@suse.de,
       Jan Engelhardt <jengelh@linux01.gwdg.de>
Subject: Re: kmalloc() with size zero
References: <20070323001824.GA26540@frankl.hpl.hp.com> <Pine.LNX.4.61.0703230237390.9555@yvahk01.tjqt.qr> <1174624770.10742.2.camel@wriver-t81fb058.linuxcoe> <20070325163013.GW741@vanheusden.com> <20070326080908.GF9144@frankl.hpl.hp.com>
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Stephane Eranian wrote:
> Hi,
> 
> On Sun, Mar 25, 2007 at 06:30:34PM +0200, Folkert van Heusden wrote:
>>>> I'd say "feature", glibc's malloc also returns an address on
>>>> malloc(0).
>>>>
>>> This is implementation defined-the standard allows for return of either
>>> null or an address.
>> Entirely for entertainment: AIX (5.3) returns NULL, IRIX returns a valid
>> address.
>>
> That's interesting, so many different behaviors! Personally, I still prefer
> when malloc(0) returns zero because it makes it easier to catch errors.
> 
Exactly, the address returned is not really useful, the improved error 
checking is useful.

-- 
Bill Davidsen <davidsen@tmr.com>
   "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot