From: "Warren W. Gay VE3WWG" <ve3wwg@home.com>
Subject: Re: Out parameters in a function
Date: Wed, 24 Apr 2002 17:21:37 GMT
Date: 2002-04-24T17:21:37+00:00 [thread overview]
Message-ID: <3CC6E99F.3000603@home.com> (raw)
In-Reply-To: ep8qbu4n4ubb511n95k6ohpdl9popsj3m1@4ax.com
Dmitry A. Kazakov wrote:
> On Tue, 16 Apr 2002 20:00:42 +0000 (UTC), "Kent Paul Dolan"
> <xanthian@well.com> wrote:
...
> Same in Ada:
>
> declare
> aSomestructTypedVariable : constant SomestructType :=
> aSomestructReturningFunction (...);
> begin
> if aSomestructTypedVariable.booleanPart then
> usefulVal := aSomestructTypedVariable.usefulPart;
> end if;
> end;
You could take this one step further (or perhaps this is implied)
and make the returned "SomestructType" a discriminated type. That
way if the value .booleanPart is false, the other member(s) of the
record/structure is invalid to access, maintaining safety.
...
> Regards,
> Dmitry Kazakov
> www.dmitry-kazakov.de
--
Warren W. Gay VE3WWG
http://home.cogeco.ca/~ve3wwg
next prev parent reply other threads:[~2002-04-24 17:21 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-04-14 18:29 Out parameters in a function Nazgul
2002-04-14 19:45 ` David C. Hoos, Sr.
2002-04-15 10:49 ` John McCabe
2002-04-15 11:51 ` John McCabe
2002-04-15 13:43 ` Steve Doiel
2002-04-15 15:09 ` Ted Dennison
2002-04-16 8:49 ` John McCabe
2002-04-16 10:05 ` Dmitry A. Kazakov
2002-04-16 15:26 ` John McCabe
2002-04-16 19:34 ` Matthew Woodcraft
2002-04-16 20:10 ` Darren New
2002-04-17 1:30 ` Kent Paul Dolan
2002-04-17 16:15 ` Darren New
2002-04-19 17:39 ` Florian Weimer
2002-04-17 13:24 ` Stephen Leake
2002-04-17 16:32 ` Darren New
2002-04-17 21:03 ` Kent Paul Dolan
2002-04-18 12:14 ` Wolfgang Gellerich
2002-04-18 13:52 ` Dmitry A. Kazakov
2002-04-18 16:28 ` Darren New
2002-04-17 10:17 ` John McCabe
2002-04-16 19:58 ` Kent Paul Dolan
2002-04-16 20:00 ` Kent Paul Dolan
2002-04-17 4:40 ` Jim Rogers
2002-04-17 5:27 ` Kent Paul Dolan
2002-04-17 5:50 ` Eric G. Miller
2002-04-24 2:45 ` David Thompson
2002-04-19 17:40 ` Florian Weimer
2002-04-19 18:26 ` Jim Rogers
2002-04-19 18:53 ` Florian Weimer
2002-04-17 7:57 ` Dmitry A. Kazakov
2002-04-17 10:21 ` John McCabe
2002-04-24 17:21 ` Warren W. Gay VE3WWG [this message]
2002-04-26 7:32 ` Dmitry A. Kazakov
2002-04-15 16:24 ` Stephen Leake
2002-04-16 13:38 ` Ted Dennison
2002-04-17 11:55 ` Ingo Marks
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