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From: "Randy Brukardt" <randy@rrsoftware.com>
Subject: Re: Why no Ada.Wide_Directories?
Date: Tue, 25 Oct 2011 14:22:27 -0500
Date: 2011-10-25T14:22:27-05:00	[thread overview]
Message-ID: <j8729l$3g6$1@munin.nbi.dk> (raw)
In-Reply-To: 5279agttaub8.1pl7pt496l1am$.dlg@40tude.net

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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:5279agttaub8.1pl7pt496l1am$.dlg@40tude.net...
> On Fri, 21 Oct 2011 14:53:11 +0200, Yannick Duch�ne (Hibou57) wrote:
>
>> Le Thu, 20 Oct 2011 19:35:21 +0200, Dmitry A. Kazakov
>> <mailbox@dmitry-kazakov.de> a �crit:
>
>>>> What's missing from Interface type introduced with Ada 2005 ?
>>>
>>> 1. Most Ada types do not have interfaces
>> Eiffel has this, and this is 1) not perfect (may lead to performance
>> issue) 2) rarely used in practice
>
> There is no performance loss.

Anytime you have a construct that allows multiple inheritance, there is a 
large performance loss (whether or not you use the multiple inheritance). 
You can move the performance loss from one construct to another (i.e. 
dispatching calls, access types, etc.) but you can't get rid of it. Keep in 
mind that "performance loss" means not just run-time but also space 
efficiency (which is important in a language used mainly in embedded 
systems).

                                             Randy.







  reply	other threads:[~2011-10-25 19:22 UTC|newest]

Thread overview: 100+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-10-14  6:58 Why no Ada.Wide_Directories? Michael Rohan
2011-10-14  7:39 ` Yannick Duchêne (Hibou57)
2011-10-14  9:07   ` Dmitry A. Kazakov
2011-10-14 12:48     ` Yannick Duchêne (Hibou57)
2011-10-14 12:54     ` Yannick Duchêne (Hibou57)
2011-10-15  1:06 ` ytomino
2011-10-15  6:55   ` Vadim Godunko
2011-10-15 12:34     ` ytomino
2011-10-15  8:38   ` Dmitry A. Kazakov
2011-10-15 13:12     ` Peter C. Chapin
2011-10-15 13:22       ` Ludovic Brenta
2011-10-15 14:47       ` Dmitry A. Kazakov
2011-10-16  5:48         ` Yannick Duchêne (Hibou57)
2011-10-17  0:15         ` Peter C. Chapin
2011-10-17  3:23           ` Yannick Duchêne (Hibou57)
2011-10-17  7:12           ` Simon Wright
2011-10-17  7:59           ` Dmitry A. Kazakov
2011-10-18 10:55             ` Peter C. Chapin
2011-10-18 12:27               ` Dmitry A. Kazakov
2011-10-16  5:51       ` Yannick Duchêne (Hibou57)
2011-10-17 21:41         ` Randy Brukardt
2011-10-18  7:29           ` Dmitry A. Kazakov
2011-10-18 14:06           ` Pascal Obry
2011-10-18 14:08             ` Pascal Obry
2011-10-19 21:32             ` Randy Brukardt
2011-10-17 21:33   ` Randy Brukardt
2011-10-17 23:47     ` ytomino
2011-10-18  1:10       ` Adam Beneschan
2011-10-18  2:32         ` ytomino
2011-10-18  4:46           ` ytomino
2011-10-18  9:32             ` Yannick Duchêne (Hibou57)
2011-10-18 10:00               ` Dmitry A. Kazakov
2011-10-18 10:06                 ` Yannick Duchêne (Hibou57)
2011-10-18 12:01                   ` Dmitry A. Kazakov
2011-10-18 15:02           ` Adam Beneschan
2011-10-18 15:16             ` Dmitry A. Kazakov
2011-10-18 23:42               ` Adam Beneschan
2011-10-19  8:12                 ` Dmitry A. Kazakov
2011-10-19 21:43               ` Randy Brukardt
2011-10-20  7:37                 ` Dmitry A. Kazakov
2011-10-20 11:04                   ` Yannick Duchêne (Hibou57)
2011-10-20 12:21                     ` Dmitry A. Kazakov
2011-10-20 12:38                       ` Yannick Duchêne (Hibou57)
2011-10-20 14:31                         ` Dmitry A. Kazakov
2011-10-20 15:54                           ` Yannick Duchêne (Hibou57)
2011-10-20 17:35                             ` Dmitry A. Kazakov
2011-10-21 12:53                               ` Yannick Duchêne (Hibou57)
2011-10-21 13:41                                 ` Dmitry A. Kazakov
2011-10-25 19:22                                   ` Randy Brukardt [this message]
2011-10-25 19:35                                     ` Dmitry A. Kazakov
2011-10-26 22:41                                       ` Randy Brukardt
2011-10-27  7:43                                         ` Dmitry A. Kazakov
2011-10-27 15:13                                           ` Yannick Duchêne (Hibou57)
2011-10-27 19:39                                             ` Robert A Duff
2011-10-27 21:09                                               ` Yannick Duchêne (Hibou57)
2011-10-28  7:50                                                 ` Dmitry A. Kazakov
2011-10-28  8:45                                                   ` Yannick Duchêne (Hibou57)
2011-10-28 14:59                                                     ` Dmitry A. Kazakov
2011-10-20 17:40                   ` J-P. Rosen
2011-10-20 18:43                     ` Dmitry A. Kazakov
2011-10-21 10:07                     ` Vadim Godunko
2011-10-21 11:25                       ` J-P. Rosen
2011-10-21 12:25                         ` Yannick Duchêne (Hibou57)
2011-10-21 13:13                         ` Dmitry A. Kazakov
2011-10-21 16:03                           ` Yannick Duchêne (Hibou57)
2011-10-21 18:34                             ` Dmitry A. Kazakov
2011-10-21 19:30                               ` Yannick Duchêne (Hibou57)
2011-10-21 20:02                                 ` Dmitry A. Kazakov
2011-10-21 20:36                                   ` Yannick Duchêne (Hibou57)
2011-10-22  7:54                                     ` Dmitry A. Kazakov
2011-10-22 20:28                                       ` Yannick Duchêne (Hibou57)
2011-10-22 22:23                                       ` Yannick Duchêne (Hibou57)
2011-10-23  7:53                                         ` Dmitry A. Kazakov
2011-10-25 19:16                                           ` Randy Brukardt
2011-10-21 18:55                         ` Vadim Godunko
2011-10-21 19:18                           ` J-P. Rosen
2011-10-21 19:41                           ` Yannick Duchêne (Hibou57)
2011-10-18 22:54             ` ytomino
2011-10-18  3:15         ` Yannick Duchêne (Hibou57)
2011-10-18  7:55         ` Dmitry A. Kazakov
2011-10-18  9:41           ` Yannick Duchêne (Hibou57)
2011-10-18 10:25           ` J-P. Rosen
2011-10-18 10:56             ` Yannick Duchêne (Hibou57)
2011-10-18 15:34           ` Adam Beneschan
2011-10-18 17:27             ` J-P. Rosen
2011-10-18 18:33               ` Adam Beneschan
2011-10-18 19:54               ` Yannick Duchêne (Hibou57)
2011-10-18  8:01       ` Dmitry A. Kazakov
2011-10-18  2:59     ` Yannick Duchêne (Hibou57)
2011-10-18  4:07       ` Michael Rohan
2011-10-18  4:54       ` ytomino
2011-10-18  9:54         ` Yannick Duchêne (Hibou57)
2011-10-18 10:52           ` ytomino
2011-10-18 11:02             ` Yannick Duchêne (Hibou57)
2011-10-18 21:18               ` ytomino
2011-10-18 10:10       ` J-P. Rosen
2011-10-22  6:32         ` Michael Rohan
2011-10-22  7:25           ` Yannick Duchêne (Hibou57)
2011-10-25 19:26           ` Randy Brukardt
2011-10-27 17:40 ` anon
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