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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: Type conversions forced by derived type: alternative?
Date: 1996/09/05
Message-ID: <Dx8Hv9.Aqt@world.std.com>#1/1
X-Deja-AN: 178571507
references: <udk9uadn0n.fsf@tanana.llnl.gov>
organization: The World Public Access UNIX, Brookline, MA
newsgroups: comp.lang.ada
Date: 1996-09-05T00:00:00+00:00
List-Id: <comp.lang.ada>


In article <udk9uadn0n.fsf@tanana.llnl.gov>,
John Woodruff <woodruff1@llnl.gov> wrote:
>   type Object is new Implementation.Tree;   -- subtype doesn't fit here

Object inherits the primitive ops of Tree, so...

>      if Item_Of(Implementation.Tree (O)).Label = "Hello" then

the type conversion should not be necessary.  Unless I'm missing
something.  I assume Item_Of is a primitive op of type Tree, and should
therefore be inherited by type Object?

- Bob