From: sb463ba@l1-hrz.uni-duisburg.de (Georg Bauhaus)
Subject: Re: private "subtype"s
Date: 2000/10/10
Date: 2000-10-10T00:00:00+00:00 [thread overview]
Message-ID: <8s02li$8jv$1@news-hrz.uni-duisburg.de> (raw)
In-Reply-To: 8rt85j$hg7$1@nnrp1.deja.com
Ted Dennison:
: That makes a little bit of sense.
At least :-) I started thinking it doesn't
and only made things awkwardly complex. So
would I be better off using some tagged records
for the following example?
package Society is
type Person is
(Dumb, Boring, Average, Skilled, Smart, Clever, Genius, Freaky);
-- (rather incomplete)
end Society;
generic
How_Many: Positive;
-- counting the crowd
package Society.Club is
-- sub-
type Correct_People is private;
-- a selection of more distinguished persons
type Participants is
array(1..How_Many) of Correct_People;
procedure Party(P: Participants);
procedure Celebrate(P: Participants) renames Party;
-- stay PC
private
-- sub-
type Correct_People is new Person
range Smart..Genius;
end Society.Club;
generic
How_Many: Positive;
-- counting the crowd
package Society.Joe_Bloggs is
-- sub-
type Cheap_Flat_People is private;
-- a selection of persons
type Participants is
array(1..How_Many) of Cheap_Flat_People;
procedure Party(P: Participants);
procedure Get_Drunk(P: Participants) renames Party;
-- well, maybe
private
-- sub-
type Cheap_Flat_People is new Person
range Dumb..Average;
-- if you can believe this
end Society.Joe_Bloggs;
The admittedly vague idea in the code
is to have someone like Groucho Marx enter the
Club and not having to be converted to another
type of person...
But with "-- sub-"types below it looks like
requiring constraints to trigger similar things
like types can do. Yes, so there...
prev parent reply other threads:[~2000-10-10 0:00 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2000-10-09 0:00 private "subtype"s Georg Bauhaus
2000-10-09 0:00 ` Ted Dennison
2000-10-10 0:00 ` Georg Bauhaus [this message]
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