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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: {Pre,Post}conditions and side effects
Date: Thu, 14 May 2015 09:19:25 +0200
Organization: cbb software GmbH
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Date: 2015-05-14T09:19:25+02:00
List-Id: <comp.lang.ada>

On Wed, 13 May 2015 20:32:36 -0500, Randy Brukardt wrote:

> I'd prefer to use predicates and subtypes to describe this (since Dmitry 
> denies the value of subtypes,

I never said that. My point is that Ada subtype is a type, related to its
base type. It is a type enough to change the behavior of some operations.
That's  it.

Ada subtypes as method of producing new types (specialization), is very
useful.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de