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Date:      Fri, 21 Aug 1998 16:26:47 +0200
From:      Eivind Eklund <eivind@yes.no>
To:        Warner Losh <imp@village.org>, Brian Somers <brian@Awfulhak.org>
Cc:        Archie Cobbs <archie@whistle.com>, Nate Williams <nate@mt.sri.com>, hackers@FreeBSD.ORG
Subject:   Re: Realloc fix for review
Message-ID:  <19980821162647.47092@follo.net>
In-Reply-To: <199808210309.VAA26640@harmony.village.org>; from Warner Losh on Thu, Aug 20, 1998 at 09:08:59PM -0600
References:  <199808210107.CAA13727@awfulhak.org> <199808210309.VAA26640@harmony.village.org>

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On Thu, Aug 20, 1998 at 09:08:59PM -0600, Warner Losh wrote:
> In message <199808210107.CAA13727@awfulhak.org> Brian Somers writes:
> : AFAIK not all free() implementations ignore a NULL pointer (although 
> : FreeBSD's does).  But then, not all realloc() implementations allow a 
> : NULL either (FreeBSD's does) :-/
> 
> free(NULL); is required to be valid by tha ANSI standard.  I don't
> know about the realloc(NULL, s); case, however.

Required.  The same goes for realloc(pointer, 0) being the same as
free().

Eivind.


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