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From: Martin Krischik <krischik@users.sourceforge.net>
Newsgroups: comp.lang.ada
Subject: Re: private types
Date: Mon, 20 Mar 2006 20:32:57 +0100
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Date: 2006-03-20T20:32:57+01:00
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Maciej Sobczak wrote:

> The interesting question is why it might make any difference to you?
> The only thing that really matters is that the null pointer is distinct
> from any other valid pointer, in which case it's equivalent to Ada's
> null.

For C++ I can - barely - see that but C is supposed to system programming
language suitable for kernel and/or embedded progamming. Taking that into
account: How actually are the languages implementers to implement 
"distinct from any other valid pointer". If you are implementing a Ring 0
device driver on x86 all pointers are valid and on PC architecture there is
memory at (void*0) which one might want to access.

Martin
-- 
mailto://krischik@users.sourceforge.net
Ada programming at: http://ada.krischik.com