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From: dewar@merv.cs.nyu.edu (Robert Dewar)
Subject: Re: Text_IO for other standard types
Date: 1998/01/16
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Date: 1998-01-16T00:00:00+00:00
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Nick Roberts said

<<There are occasions when knowing such a 'natural' modular type would be
helpful (e.g. programming 'bignums'); the provision of an appropriate
predefined modular type would therefore be genuinely helpful.
>>

But surely this is a perfect example where you do NOT want predefined
types to be used at all.

Certainly a reasonable declaration in this case would be:

   type x is mod 2 ** Integer'Size;

but I would oppose adding this to the language.

P.S> if you really, really want these predefined types, and are using
GNAT, have a looik at System.Unsigned_Types. Of course you are not supposed
to use these secret implementatoin packages :-)