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From: Shark8 <OneWingedShark@gmail.com>
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Subject: Re: What is the difference of "with null record" and "with private"?
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Date: 2014-05-24T11:33:24-06:00
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On 24-May-14 04:49, Victor Porton wrote:
> Shark8 wrote:
>
>> On 23-May-14 12:19, Victor Porton wrote:
>>> What is the difference of "with null record" and "with private"?
>>>
>>> Both denote a descendant of a type with no new additional public fields.
>>
>> Incorrect.
>> Null record does what you indicate, with private means that any fields
>> aren't visible/public. Example:
>
> I've said "no new additional PUBLIC fields" not just "no new additional
> fields"!

So? The point stands the method given does something quite different -- 
this means that you can alter behavior w/o changing the underlying 
structure -- say renaming 'append' and 'prepend' inversely on a vector 
so that your operations work from the other end w/o any modification to 
the client code.