From: Maciej Sobczak <no.spam@no.spam.com>
Subject: Re: Constructing an object
Date: Thu, 22 Sep 2005 09:45:24 +0200
Date: 2005-09-22T09:45:24+02:00 [thread overview]
Message-ID: <dgtnek$9b9$1@sunnews.cern.ch> (raw)
In-Reply-To: <dgtmec$6kp$1@sunnews.cern.ch>
Maciej Sobczak wrote:
>> 3. The default values:
>
> OK, this solves some of the cases. In general, however, by
> "initialization" I mean performing some actions (not just inventing
> values), like acquire on external resources.
And I just realized that I don't have to use constants as default
values, thay can come from functions...
>> 4. Initialization enforcement via discriminants:
>>
>> 4.a. Discriminants as members:
... and here those functions could even take the discriminant as a
parameter:
function Get_New(Param : in SomeType) returns OtherType is
begin
-- ...
end Get_Value;
type Record (Param : SomeType) is record
X : OtherType := Get_New(Param);
end record;
A : Record(7);
This way, I can execute some action in order to initialize the object,
and even use some parameters.
Further questions: Are there any restrictions on SomeType?
--
Maciej Sobczak : http://www.msobczak.com/
Programming : http://www.msobczak.com/prog/
next prev parent reply other threads:[~2005-09-22 7:45 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-21 8:46 Constructing an object Maciej Sobczak
2005-09-21 10:16 ` Georg Bauhaus
2005-09-22 7:21 ` Maciej Sobczak
2005-09-21 11:55 ` Dmitry A. Kazakov
2005-09-22 7:28 ` Maciej Sobczak
2005-09-22 7:45 ` Maciej Sobczak [this message]
2005-09-22 13:33 ` Dmitry A. Kazakov
2005-09-24 5:23 ` Randy Brukardt
2005-09-24 9:47 ` Dmitry A. Kazakov
2005-09-29 0:12 ` Randy Brukardt
2005-09-29 8:17 ` Dmitry A. Kazakov
2005-09-29 22:21 ` Randy Brukardt
2005-09-30 8:14 ` Jean-Pierre Rosen
2005-09-30 19:28 ` Dmitry A. Kazakov
2005-09-30 17:49 ` Robert A Duff
2005-10-01 0:44 ` Randy Brukardt
2005-10-01 10:49 ` Dmitry A. Kazakov
2005-10-01 11:06 ` Tapio Kelloniemi
2005-10-01 14:13 ` Robert A Duff
2005-10-02 11:52 ` Tapio Kelloniemi
2005-10-01 15:19 ` Georg Bauhaus
2005-09-23 5:40 ` Matthew Heaney
2005-09-23 7:18 ` tmoran
2005-09-23 8:23 ` Maciej Sobczak
2005-09-23 12:04 ` Dmitry A. Kazakov
2005-09-23 12:36 ` Matthew Heaney
2005-09-23 13:03 ` Hyman Rosen
2005-09-23 13:41 ` Maciej Sobczak
2005-09-23 14:23 ` Matthew Heaney
2006-01-17 6:28 ` [Offtopic] " James Dennett
2005-09-23 13:42 ` Dmitry A. Kazakov
2005-09-23 14:27 ` Matthew Heaney
2005-09-23 12:24 ` Matthew Heaney
2005-09-24 5:34 ` Randy Brukardt
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