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From: ytomino <aghia05@gmail.com>
Subject: Re: discriminant questions
Date: Tue, 20 Sep 2011 11:47:50 -0700 (PDT)
Date: 2011-09-20T11:47:50-07:00	[thread overview]
Message-ID: <f9108fe3-f158-46b4-9019-c781b4fbe7f4@cd4g2000vbb.googlegroups.com> (raw)
In-Reply-To: 1axnuyk0kn2ru.cda1cs7skqcr$.dlg@40tude.net

> Note that generics poison anything they touch. Every language feature need
> a generic counterpart, so not only the discriminants need to have
> corresponding formal generic parameter, but also the newly added aspect
> stuff. I don't know if Ada 2012 has formal generic implicit_dereference.
> Does it?
Yes, formal type can have  [aspect_specification].
http://www.ada-auth.org/standards/12rm/html/RM-12-5.html

And it's related only to syntax. If formal type can not have aspect,
we can write ".Element.all" like Georg Bauhaus wrote.

> Anyway the first step to do is generic package interfaces. If you want
> Vectors, Doubly_Linked_Lists etc to be used in a generic manner they shall
> implement an interface (a generic one, because the packages are generic).
> Ada lacks means to describe generic interfaces and to match generic
> packages against them.
> The whole idea of generic containers used for generic programming is not
> sustainable, sorry for delivering an inconvenient truth.
> If you want generic programming working do it on the class-wide basis.

There is an illogical jump in what you say.
The problem is just that Reference/Constant_Reference can be used in
generic, or not.
And it's tiny problem. If Reference/Constant_Reference can not be used
in generic after all, I will use Element or Query_Element as before.



  reply	other threads:[~2011-09-20 18:49 UTC|newest]

Thread overview: 89+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-09-17 16:30 discriminant questions ytomino
2011-09-17 17:19 ` Dmitry A. Kazakov
2011-09-17 17:46   ` ytomino
2011-09-17 19:41     ` Dmitry A. Kazakov
2011-09-17 22:55       ` ytomino
2011-09-18  8:50         ` Dmitry A. Kazakov
2011-09-18 10:54           ` ytomino
2011-09-18 11:35             ` Dmitry A. Kazakov
2011-09-18 12:41               ` ytomino
2011-09-18 13:17                 ` Dmitry A. Kazakov
2011-09-18 16:22                   ` ytomino
2011-09-18 16:32                   ` ytomino
2011-09-18 18:15                     ` Dmitry A. Kazakov
2011-09-18 23:44                       ` ytomino
2011-09-19  7:27                         ` Dmitry A. Kazakov
2011-09-18 14:43               ` Dmitry A. Kazakov
2011-09-18 16:46               ` Robert A Duff
2011-09-18 18:01                 ` Dmitry A. Kazakov
2011-09-18 19:20                   ` Maciej Sobczak
2011-09-19  7:39                     ` Dmitry A. Kazakov
2011-09-19 20:00                       ` Maciej Sobczak
2011-09-20  7:33                         ` Dmitry A. Kazakov
2011-09-20 15:45                           ` Maciej Sobczak
2011-09-20 16:48                             ` Dmitry A. Kazakov
2011-09-20 20:19                               ` Maciej Sobczak
2011-09-21  7:48                                 ` Dmitry A. Kazakov
2011-09-21 20:51                                   ` Maciej Sobczak
2011-09-22  8:07                                     ` Dmitry A. Kazakov
2011-09-22 20:57                                       ` Maciej Sobczak
2011-09-23  7:59                                         ` Dmitry A. Kazakov
2011-09-23 10:57                                           ` Georg Bauhaus
2011-09-23 22:30                                           ` Randy Brukardt
2011-09-23 22:50                                           ` Randy Brukardt
2011-09-24  6:46                                             ` Dmitry A. Kazakov
2011-09-26 22:48                                               ` Randy Brukardt
2011-09-27  8:10                                                 ` Dmitry A. Kazakov
2011-09-27 10:18                                                   ` Georg Bauhaus
2011-09-27 12:14                                                     ` Dmitry A. Kazakov
2011-09-27 15:11                                                       ` Georg Bauhaus
2011-09-27 15:38                                                         ` Dmitry A. Kazakov
2011-09-27 18:06                                                           ` Georg Bauhaus
2011-09-27 19:06                                                             ` Dmitry A. Kazakov
2011-09-29  0:01                                                               ` Georg Bauhaus
2011-09-29  8:26                                                                 ` Dmitry A. Kazakov
2011-09-30  1:24                                                                   ` Randy Brukardt
2011-09-30  8:10                                                                     ` Dmitry A. Kazakov
2011-09-30 10:07                                                                   ` Georg Bauhaus
2011-09-30 12:38                                                                     ` Dmitry A. Kazakov
2011-09-30 17:40                                                                       ` Georg Bauhaus
2011-09-30 18:55                                                                         ` Dmitry A. Kazakov
2011-09-23  9:23                                       ` Stephen Leake
2011-09-23  9:48                                         ` Dmitry A. Kazakov
2011-09-23 22:42                                           ` Randy Brukardt
2011-09-24  6:56                                             ` Dmitry A. Kazakov
2011-09-26 22:43                                               ` Randy Brukardt
2011-09-24 10:47                                             ` Stephen Leake
2011-09-24 12:54                                       ` Simon Wright
2011-09-24 14:46                                         ` Dmitry A. Kazakov
2011-09-24 16:21                                           ` Simon Wright
2011-09-24 16:43                                             ` Dmitry A. Kazakov
2011-09-22  2:52                                   ` Randy Brukardt
2011-09-22  8:11                                     ` Dmitry A. Kazakov
2011-09-20  0:01           ` Randy Brukardt
2011-09-20  7:38             ` Dmitry A. Kazakov
2011-09-20 11:11               ` AdaMagica
2011-09-20 12:09                 ` Dmitry A. Kazakov
2011-09-20 12:31                   ` AdaMagica
2011-09-20 12:57                     ` Dmitry A. Kazakov
2011-09-20 23:28                       ` ytomino
2011-09-21  5:03                         ` AdaMagica
2011-09-21  8:08                         ` Dmitry A. Kazakov
2011-09-21 10:03                           ` Georg Bauhaus
2011-09-21 10:29                             ` Dmitry A. Kazakov
2011-09-22  3:21                           ` Randy Brukardt
2011-09-22  3:05                   ` Randy Brukardt
2011-09-19 23:35         ` Randy Brukardt
2011-09-20 21:39           ` ytomino
2011-09-22  3:32             ` Randy Brukardt
2011-09-18 16:32 ` ytomino
2011-09-19 14:46   ` ytomino
2011-09-19 15:14     ` Dmitry A. Kazakov
2011-09-19 17:49       ` ytomino
2011-09-20  7:29         ` Georg Bauhaus
2011-09-20 19:50           ` ytomino
2011-09-20  8:08         ` Dmitry A. Kazakov
2011-09-20 18:47           ` ytomino [this message]
2011-09-21  8:16             ` Dmitry A. Kazakov
2011-09-21  9:55               ` ytomino
2011-09-22  3:26                 ` Randy Brukardt
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