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From: "G.B." <bauhaus@notmyhomepage.invalid>
Newsgroups: comp.lang.ada
Subject: Re: Ada 2012 Constraints (WRT an Ada IR)
Date: Thu, 15 Dec 2016 11:31:21 +0100
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Xref: news.eternal-september.org comp.lang.ada:32843
Date: 2016-12-15T11:31:21+01:00
List-Id: <comp.lang.ada>

On 15/12/2016 09:41, Dmitry A. Kazakov wrote:
> In Ada type declarations must be there, so it is not a tool, but an integral part of the language. This is why "pre"-aspects is a non-starter even ignoring their semantic consistency issues. You can do things with or without them. Psychologically it won't work.

Problem statement:
Devise a type that represents an ordered pair of linearly
ordered numbers, such that programmers can create objects that
have the two elements in proper order.