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From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
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Newsgroups: comp.lang.ada
Subject: Re: Seeking for papers about tagged types vs access to subprograms
Date: Fri, 10 May 2013 06:35:36 +0200
Organization: Ada @ Home
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Date: 2013-05-10T06:35:36+02:00
List-Id: <comp.lang.ada>

Le Wed, 08 May 2013 20:17:30 +0200, Dmitry A. Kazakov  =

<mailbox@dmitry-kazakov.de> a =C3=A9crit:
>> That's what a subtype is to me (I don't know if it's the proper term;=
 at
>> least it seems to match with Ada's own wording).
>
> No. Ada subtype cannot not disallow an operation.

I made a dirty picture based on values. Ada's subtypes can't restrict  =

operations, however do restrict values.


-- =

=E2=80=9CSyntactic sugar causes cancer of the semi-colons.=E2=80=9D [1]
=E2=80=9CStructured Programming supports the law of the excluded muddle.=
=E2=80=9D [1]
[1]: Epigrams on Programming =E2=80=94 Alan J. =E2=80=94 P. Yale Univers=
ity