From: "Steve" <nospam_steved94@comcast.net>
Subject: Re: Generic procedures and their parameters
Date: Wed, 6 Sep 2006 19:47:14 -0700
Date: 2006-09-06T19:47:14-07:00 [thread overview]
Message-ID: <I_CdnXhjVN2_FWLZnZ2dnUVZ_qKdnZ2d@comcast.com> (raw)
In-Reply-To: edm273$fee$1@sunnews.cern.ch
"Maciej Sobczak" <no.spam@no.spam.com> wrote in message
news:edm273$fee$1@sunnews.cern.ch...
> Hi,
>
> I have found the following signature for the sorting procedure:
>
> eneric
> type Index_Type is (<>);
> type Element_Type is private;
> type Array_Type is array (Index_Type range <>) of Element_Type;
> with function "<" (Left, Right : in Element_Type) return Boolean is <>;
> procedure Sort(To_Sort : in out Array_Type);
>
> My question is: what's the purpose of the third parameter (Array_Type)?
> Isn't it implied by the first two and therefore just redundant?
>
I prefer:
generic
type Index_Type is (<>);
type Collection_Type is private;
firstIndex : Index_Type;
lastIndex : Index_Type;
with function In_Order( list : Collection_Type; i, j : Index_Type )
return Boolean;
procedure Swap( list : in out Collection_Type; i, j : Index_Type );
procedure Sort( list : in out Collection_Type );
This avoids the declaration of the array altogether, and is usable for any
list that may be referenced by index.
My 2 cents.
Steve
(The Duck)
>
> --
> Maciej Sobczak : http://www.msobczak.com/
> Programming : http://www.msobczak.com/prog/
next prev parent reply other threads:[~2006-09-07 2:47 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-09-06 8:51 Generic procedures and their parameters Maciej Sobczak
2006-09-06 9:43 ` Dmitry A. Kazakov
2006-09-06 12:36 ` Maciej Sobczak
2006-09-06 13:11 ` Robert A Duff
2006-09-06 14:14 ` Maciej Sobczak
2006-09-06 15:09 ` Dmitry A. Kazakov
2006-09-06 16:35 ` Georg Bauhaus
2006-09-07 7:32 ` Dmitry A. Kazakov
2006-09-07 6:48 ` Georg Bauhaus
2006-09-07 10:19 ` Dmitry A. Kazakov
2006-09-08 9:11 ` Maciej Sobczak
2006-09-08 10:19 ` Dmitry A. Kazakov
2006-09-09 14:49 ` Robert A Duff
2006-09-09 15:34 ` Dmitry A. Kazakov
2006-09-09 23:26 ` Jeffrey R. Carter
2006-09-10 11:49 ` Robert A Duff
2006-09-10 19:43 ` Jeffrey R. Carter
2006-09-06 13:02 ` Robert A Duff
2006-09-06 14:09 ` Dmitry A. Kazakov
2006-09-08 3:35 ` Randy Brukardt
2006-09-08 7:21 ` Dmitry A. Kazakov
2006-09-09 1:29 ` Randy Brukardt
2006-09-09 7:14 ` Dmitry A. Kazakov
2006-09-09 14:32 ` Robert A Duff
2006-09-06 12:56 ` Robert A Duff
2006-09-07 2:47 ` Steve [this message]
2006-09-07 7:47 ` Dmitry A. Kazakov
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