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From: Georg Bauhaus <sb463ba@l1-hrz.uni-duisburg.de>
Newsgroups: comp.lang.ada
Subject: Re: Hijacking a Thread was RE: New Ada compiler for .NET
Date: Fri, 10 Jan 2003 23:17:34 +0000 (UTC)
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Hyman Rosen <hyrosen@mail.com> wrote:
: What situations lead one to declare a type which is limited to a
: range of integers? I'm thinking fixed-size arrays, which I usually
: consider to be a design error.

not necessarily fixed, array(few range <>) implies arrays with
an upper limit of components.

add:
- documentary value,
- Design by Contract (since a number is required to be between 
some lo and hi, and a function ensures a number is in some
range indicated by the return type)
- building non-overlapping subtypes
- and, in general, if the "problem space" has some items ranging
between some lo and hi, such that an enumeration would not be
practical.

-- georg