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From: Maciej Sobczak <see.my.homepage@gmail.com>
Subject: Re: using an Ada.Container as a private type
Date: Thu, 3 Apr 2008 13:41:10 -0700 (PDT)
Date: 2008-04-03T13:41:10-07:00	[thread overview]
Message-ID: <5c9b6d27-d54a-43ae-aba8-8ef4b522fbc5@e10g2000prf.googlegroups.com> (raw)
In-Reply-To: 42c84166-c7e4-42e0-b1bf-2104d3bb0cda@e10g2000prf.googlegroups.com

On 3 Kwi, 17:29, Graham <graham.st...@virtual-worlds.biz> wrote:

>    package Payment_Stream_Package is new Ada.Containers.Ordered_Maps(
>       Element_Type => Money,
>       Key_Type => Positive );
>
>    type Payment_Stream is new Payment_Stream_Package.Map;

Instead of a solution, I have a question:

Why do you derive from Map? Which operations of Map do you plan to
override?

Do you ever plan to pass Payment_Stream where
Payment_Stream_Package.Map'Class is expected? What effect would you
like to achieved this way?

Why derivation and not composition?

--
Maciej Sobczak * www.msobczak.com * www.inspirel.com



  parent reply	other threads:[~2008-04-03 20:41 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-04-03 15:29 using an Ada.Container as a private type Graham
2008-04-03 16:00 ` Robert A Duff
2008-04-03 16:02 ` Dmitry A. Kazakov
2008-04-03 16:20   ` Graham
2008-04-03 20:41 ` Maciej Sobczak [this message]
2008-04-04  8:02   ` Graham
2008-04-04 15:57     ` Adam Beneschan
2008-04-04 17:25     ` Robert A Duff
2008-04-04 19:37       ` Simon Wright
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