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Date: Mon, 11 Oct 2004 08:54:13 +0200 (CEST)
From: Harti Brandt <harti@freebsd.org>
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Subject: Re: please help with: warning: initialization makes integer from
 pointer
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On Fri, 8 Oct 2004, Mike Hunter wrote:

MH>On Oct 08, "Harti Brandt" wrote:
MH>
MH>> On Fri, 8 Oct 2004, Dan Nelson wrote:
MH>> 
MH>> Memset is actually not portable if the structure contains pointers because 
MH>> it would initialize the pointers to 0 values not to 0 pointers. A 0 
MH>> pointer not necessarily has a 0 value. A pointer can be portably be 
MH>> initialize to the 0-pointer only by assigning NULL (or 0) (or by assigning 
MH>> another pointer that is alreay initialized).
MH>
MH>Sick!
MH>
MH>Are there actually systems out there that don't have "all-zero" NULL pointers?

If you ask this question on comp.std.c I'm sure you'll get a number of 
positive answers, but be prepared to start a _long_ thread :-)

harti