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From: Maciej Sobczak <see.my.homepage@gmail.com>
Subject: Re: A bad counterintuitive behaviour of Ada about OO
Date: Fri, 8 Aug 2014 00:54:01 -0700 (PDT)
Date: 2014-08-08T00:54:01-07:00	[thread overview]
Message-ID: <536e35d6-f1de-4917-9300-26d78686eaf2@googlegroups.com> (raw)
In-Reply-To: <bshy1lq2wgj8$.697h5ej1pk6d$.dlg@40tude.net>

W dniu czwartek, 7 sierpnia 2014 10:50:52 UTC+2 użytkownik Dmitry A. Kazakov napisał:

> > and no support for type covariance on return
> > type Ada is way more broken than other languages I am aware of.
> 
> I don't understand this. The return type is covariant in Ada.

Can I have Better_Factory type with a primitive operation returning Better_Product?

No, because Better_Product is a different type than Product and such operation would not be considered overriding. This works properly in just about any other language with support for OO.

-- 
Maciej Sobczak * http://www.msobczak.com * http://www.inspirel.com


  reply	other threads:[~2014-08-08  7:54 UTC|newest]

Thread overview: 73+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-08-05 20:09 A bad counterintuitive behaviour of Ada about OO Victor Porton
2014-08-05 20:58 ` Simon Wright
2014-08-05 21:06   ` Victor Porton
2014-08-05 21:51     ` Niklas Holsti
2014-08-05 22:13       ` Victor Porton
2014-08-05 22:35   ` Victor Porton
2014-08-05 23:25     ` Adam Beneschan
2014-08-05 20:59 ` Dmitry A. Kazakov
2014-08-05 21:07   ` Victor Porton
2014-08-05 22:39     ` Shark8
2014-08-05 21:11   ` Victor Porton
2014-08-06  7:26     ` Dmitry A. Kazakov
2014-08-07  7:41       ` Maciej Sobczak
2014-08-07  8:50         ` Dmitry A. Kazakov
2014-08-08  7:54           ` Maciej Sobczak [this message]
2014-08-08  8:14             ` Dmitry A. Kazakov
2014-08-08 13:06               ` Maciej Sobczak
2014-08-08 13:22                 ` Dmitry A. Kazakov
2014-08-08 22:32                   ` Randy Brukardt
2014-08-09 16:11                   ` Maciej Sobczak
2014-08-09 16:48                     ` Dmitry A. Kazakov
2014-08-10 20:55                       ` Maciej Sobczak
2014-08-11  7:41                         ` Dmitry A. Kazakov
2014-08-11  7:58                           ` Maciej Sobczak
2014-08-11  8:23                             ` Dmitry A. Kazakov
2014-08-12  7:50                               ` Maciej Sobczak
2014-08-11 11:35                             ` G.B.
2014-08-08 22:26                 ` Randy Brukardt
2014-08-08  8:34             ` Shark8
2014-08-08 12:59               ` Maciej Sobczak
2014-08-08 22:37                 ` Randy Brukardt
2014-08-08 22:53                   ` Jeffrey Carter
2014-08-07  8:58         ` J-P. Rosen
2014-08-07  9:40           ` Dmitry A. Kazakov
2014-08-07 11:17             ` J-P. Rosen
2014-08-07 12:28               ` Dmitry A. Kazakov
2014-08-07 13:34                 ` J-P. Rosen
2014-08-07 16:10                   ` Dmitry A. Kazakov
2014-08-07 18:14                     ` Robert A Duff
2014-08-07 19:41                       ` Dmitry A. Kazakov
2014-08-07 20:53                         ` Robert A Duff
2014-08-08  7:43                           ` Dmitry A. Kazakov
2014-08-08  8:18                             ` Shark8
2014-08-08  7:45                     ` J-P. Rosen
2014-08-08  8:04                       ` Dmitry A. Kazakov
2014-08-08  8:55                         ` J-P. Rosen
2014-08-08  9:13                           ` Dmitry A. Kazakov
2014-08-08 10:01                             ` J-P. Rosen
2014-08-08 10:53                               ` Dmitry A. Kazakov
2014-08-08 10:56                                 ` Victor Porton
2014-08-08 12:00                                 ` J-P. Rosen
2014-08-08 13:11                                   ` Dmitry A. Kazakov
2014-08-08 13:53                                     ` J-P. Rosen
2014-08-08 20:23                                       ` Dmitry A. Kazakov
2014-08-07 20:29                   ` Shark8
2014-08-08  7:49                     ` J-P. Rosen
2014-08-08  8:12                       ` Shark8
2014-08-08  8:26                         ` Dmitry A. Kazakov
2014-08-08 11:10                           ` Shark8
2014-08-08 11:20                             ` Dmitry A. Kazakov
2014-08-08 19:34                               ` Shark8
2014-08-08 20:23                                 ` Dmitry A. Kazakov
2014-08-07 15:03           ` Jeffrey Carter
2014-08-08  7:48           ` Maciej Sobczak
2014-08-08  8:51             ` J-P. Rosen
2014-08-08 13:25               ` Maciej Sobczak
2014-08-08 13:34                 ` J-P. Rosen
2014-08-08 13:52                   ` Dmitry A. Kazakov
2014-08-08 14:21                     ` J-P. Rosen
2014-08-08 20:23                       ` Dmitry A. Kazakov
2014-08-08 22:08                     ` Randy Brukardt
2014-08-08 22:18                 ` Randy Brukardt
2014-08-06  4:50 ` Per Sandberg
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