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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: private types
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Date: Sat, 18 Mar 2006 10:24:39 +0100
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Date: 2006-03-18T10:24:36+01:00
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On Fri, 17 Mar 2006 23:44:08 GMT, Justin Gombos wrote:

> On 2006-03-17, Robert A Duff <bobduff@shell01.TheWorld.com> wrote:
>> Justin Gombos <rpbkbq.xax.gld@uluv.kbq> writes:
>>
>> I'm not sure what the right answer is, but surely all the arguments
>> for and against dummy values apply equally to access types.
> 
> I don't agree with that.  Null is a standard abnormal object for
> access types in all languages, and can never be taken for something
> valid.

No. Null is a legal access value. You can compare, copy, assign null
pointers. You *can* dereference them! It is just so, that the effect of
this operation would be Constraint_Error.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de