From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.9 required=5.0 tests=BAYES_00,FREEMAIL_FROM
	autolearn=ham autolearn_force=no version=3.4.4
X-Google-Thread: 103376,6689542a60dbcc55
X-Google-NewGroupId: yes
X-Google-Attributes: gida07f3367d7,domainid0,public,usenet
X-Google-Language: ENGLISH,UTF8
Path: 
 g2news1.google.com!news3.google.com!proxad.net!feeder1-2.proxad.net!usenet-fr.net!gegeweb.org!aioe.org!not-for-mail
From: =?utf-8?Q?Yannick_Duch=C3=AAne_=28Hibou57?=
 =?utf-8?Q?=29?=
 <yannick_duchene@yahoo.fr>
Newsgroups: comp.lang.ada
Subject: Re: Discriminated records are not the most efficient, but ...
Date: Mon, 23 Aug 2010 10:26:28 +0200
Organization: Ada @ Home
Message-ID: <op.vhvtqektule2fv@garhos>
References: <op.vhs349clule2fv@garhos> <op.vhs5xtdlule2fv@garhos>
 <op.vhtrcjhmule2fv@garhos> <op.vhuw06a1ule2fv@garhos>
 <874oemcr37.fsf@mid.deneb.enyo.de> <op.vhvbhchkule2fv@garhos>
 <op.vhvktu1kule2fv@garhos> <87d3t9riip.fsf@mid.deneb.enyo.de>
 <op.vhvsa6tvule2fv@garhos> <1tp38689ok1hy.1nktp69e1nhkm.dlg@40tude.net>
NNTP-Posting-Host: qaSBlvV+1zCl6PWY+jYb4w.user.speranza.aioe.org
Mime-Version: 1.0
Content-Type: text/plain; charset=utf-8; format=flowed; delsp=yes
Content-Transfer-Encoding: Quoted-Printable
X-Complaints-To: abuse@aioe.org
X-Notice: Filtered by postfilter v. 0.8.2
User-Agent: Opera Mail/10.61 (Win32)
Xref: g2news1.google.com comp.lang.ada:13660
Date: 2010-08-23T10:26:28+02:00
List-Id: <comp.lang.ada>

Le Mon, 23 Aug 2010 10:06:46 +0200, Dmitry A. Kazakov  =

<mailbox@dmitry-kazakov.de> a =C3=A9crit:
> Nominal type equivalence is when two types considered same when their =
 =

> names
> are same. It cannot imply structural typing.
Should have said =E2=80=9CFull Name=E2=80=9D instead of Name.

In Ada, same full name (after any renaming resolution done) implies the =
 =

same structure, or implies it holds at least the same structure (if you =
 =

consider the views of a type of a class), which is enough to hold logica=
l  =

properties inferred from the structure.

You may have Package1.Type1 and package2.Type1 with different structure,=
  =

but they do not have the same name... oops, same full name.


-- =

* 3 lines of concise statements is readable, 10 pages of concise  =

statements is unreadable ;
* 3 lines of verbose statements may looks unuseful, 10 pages of verbose =
 =

statements will never looks too much pedantic