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Date: Thu, 20 Nov 2008 12:46:53 +0100
From: Georg Bauhaus <rm.dash-bauhaus@futureapps.de>
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Subject: Re: Extending discriminant types
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Date: 2008-11-20T12:46:53+01:00
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Georg Bauhaus schrieb:
> Ludovic Brenta schrieb:
>> On Nov 20, 9:30 am, christoph.gr...@eurocopter.com wrote:
>>> On 20 Nov., 08:21, a...@anon.org (anon) wrote:
>>>
>>>> Since, the orginal post suggest that the poster was using GNAT Ada 95
>>>> compiler. Because the poster states that he can compiler the code. So,
>>>> I used Gnat 3.15p using Ada 95 specs.
>> One can also try GNAT GPL Edition 2008 or GCC 4.3 (or even 4.4) and
>> pass it the -gnat95 option which is documented in the Secret GNAT
>> User's Guide.
> 
> GNAT has -gnat83 as well, but rejects, too, because there are
> neither tagged nor abstract types in Ada 83.
> 
> Just out of curiosity, given
> 
>    type T is tagged ...;
>    type D is new T with ...;
>    type E is new D with ...;
> 
> what would E'Base be?
> 
> Assuming that D is privately tagged, would E'Base
> have different effects depending on whether E's tag
> is visible or not?

D's tag, ie.