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Message from discussion Copy vector in Ada
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Georg Bauhaus  
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 More options Nov 6 2012, 6:34 am
Newsgroups: comp.lang.ada
From: Georg Bauhaus <rm.dash-bauh...@futureapps.de>
Date: Tue, 06 Nov 2012 12:33:32 +0100
Local: Tues, Nov 6 2012 6:33 am
Subject: Re: Copy vector in Ada
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On 06.11.12 03:17, Yannick Duchêne (Hibou57) wrote:

> When you do:

>     type My_Integer_Type is new Integer range -10 .. 10;

> you do this just to reuse the Integer type's physical representation and built‑in primitives, not to define a type belonging to an Integer class.

Actually, one can specify a physical representation of
My_Integer_Type that is different from Integer's. Also,
one may supplant or subtract "primitives".

When I do not need type substitution, e.g. because all
objects do their work well, and locally, then the solution is
to adapt notions of type to the solution at hand as necessary,
and if necessary at all, rather than to force working solutions
to match orthodox notions of type. Nothing wrong with the
latter, globally.


 
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