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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Subject: Re: Ada.Locales pseudo-string types
Date: Wed, 8 Aug 2012 09:18:56 +0200
Date: 2012-08-08T09:18:56+02:00	[thread overview]
Message-ID: <m23sisw6xzvc$.13juo4gi7vuwk.dlg@40tude.net> (raw)
In-Reply-To: a8ehc5Fk9hU1@mid.individual.net

On Wed, 08 Aug 2012 10:04:37 +0300, Niklas Holsti wrote:

> The rule does seem surprisingly rigid, for a value conversion. (The
> Annotated RM does not explain or motivate it.)

Ada didn't appreciate structured type equivalence in earlier times. These
rules were designed before anonymous access types crept in.

> For a value conversion,
> the default could be to convert element by element, and the compiler
> could then optimize this conversion based on what it can deduce
> statically about the matching of the source and target subtypes.

Could be interesting when elements themselves are arrays of discriminated
record subtypes constrained via discriminants with array components again
constrained etc.

Type inference is evil.

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



  reply	other threads:[~2012-08-08  7:18 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-06 16:45 Ada.Locales pseudo-string types Marius Amado-Alves
2012-08-06 17:10 ` Marius Amado-Alves
2012-08-06 19:15   ` J-P. Rosen
2012-08-06 19:34     ` Simon Wright
2012-08-06 20:07       ` Marius Amado-Alves
2012-08-06 20:57         ` Simon Wright
2012-08-06 21:09           ` Vasiliy Molostov
2012-08-06 23:07             ` Adam Beneschan
2012-08-06 23:23               ` Vasiliy Molostov
2012-08-06 23:46                 ` Adam Beneschan
2012-08-07  1:17                   ` Vasiliy Molostov
2012-08-07  7:20               ` Dmitry A. Kazakov
2012-08-07  7:43               ` Jacob Sparre Andersen
2012-08-09 20:47                 ` Randy Brukardt
2012-08-07  8:44               ` Marius Amado-Alves
2012-08-07 13:14                 ` Marius Amado-Alves
2012-08-07 15:42                   ` Adam Beneschan
2012-08-07 18:22                     ` Marius Amado-Alves
2012-08-07 20:10                       ` Adam Beneschan
2012-08-07 20:42                         ` Marius Amado-Alves
2012-08-07 21:38                           ` Adam Beneschan
2012-08-08  7:04                           ` Niklas Holsti
2012-08-08  7:18                             ` Dmitry A. Kazakov [this message]
2012-08-08  7:37                               ` Niklas Holsti
2012-08-08  8:09                                 ` Dmitry A. Kazakov
2012-08-08 11:14                                   ` Niklas Holsti
2012-08-08 11:59                                     ` Dmitry A. Kazakov
2012-08-08 14:01                                       ` Niklas Holsti
2012-08-09  7:48                                         ` Dmitry A. Kazakov
2012-08-09  8:31                                           ` Niklas Holsti
2012-08-09 12:17                                             ` Dmitry A. Kazakov
2012-08-09 15:25                                               ` Niklas Holsti
2012-08-09 16:43                                                 ` Dmitry A. Kazakov
2012-08-08  8:28                                 ` J-P. Rosen
2012-08-08 11:35                                   ` Niklas Holsti
2012-08-08 14:05                                     ` Georg Bauhaus
2012-08-08  7:32                             ` J-P. Rosen
2012-08-08  8:17                               ` Niklas Holsti
2012-08-08  8:33                                 ` J-P. Rosen
2012-08-08 11:44                                   ` Niklas Holsti
2012-08-09 21:00                                   ` Randy Brukardt
2012-08-08  8:35                                 ` Dmitry A. Kazakov
2012-08-08  9:32                                   ` Marius Amado-Alves
2012-08-08 10:11                                     ` Dmitry A. Kazakov
2012-08-08 11:28                                       ` Marius Amado-Alves
2012-08-08 11:30                                         ` Marius Amado-Alves
2012-08-08 11:35                                       ` Marius Amado-Alves
2012-08-08 12:24                                         ` Dmitry A. Kazakov
2012-08-08 11:52                                   ` Niklas Holsti
2012-08-08 13:21                                     ` Dmitry A. Kazakov
2012-08-08  9:07                             ` Marius Amado-Alves
2012-08-07 20:43                         ` Marius Amado-Alves
2012-08-07 21:59                   ` Robert A Duff
2012-08-07 22:19                     ` Adam Beneschan
2012-08-08  0:37                       ` Robert A Duff
2012-08-07 15:26                 ` Adam Beneschan
2012-08-07 18:07                   ` Marius Amado-Alves
2012-08-07 17:51       ` Simon Wright
2012-08-06 20:00     ` Marius Amado-Alves
2012-08-06 19:49   ` Jacob Sparre Andersen
2012-08-06 20:11     ` Marius Amado-Alves
2012-08-06 17:37 ` Michael Rohan
2012-08-06 18:23   ` Marius Amado-Alves
2012-08-06 19:36     ` Michael Rohan
2012-08-09 21:15   ` Randy Brukardt
2012-08-07  5:57 ` Jeffrey R. Carter
2012-08-07 15:46   ` Adam Beneschan
2012-08-07 17:51     ` Jeffrey R. Carter
2012-08-09 21:17       ` Randy Brukardt
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