From: jsa@alexandria (Jon S Anthony)
Subject: Re: Alright, now for an Ada '95 question.
Date: 1996/08/16
Date: 1996-08-16T00:00:00+00:00 [thread overview]
Message-ID: <JSA.96Aug16152154@alexandria> (raw)
In-Reply-To: 32134421.31CF@wpllabs.com
In article <32134421.31CF@wpllabs.com> Tom Di Sessa <tdisessa@wpllabs.com> writes:
> In Java, I am able to do this comparison:
> (target is of Class(Type) Component, and Class Button is is derived from
> Component)
>
> if (target instanceof Button) {...}
>
> Now, is there a way to do this comparison in Ada '95, if target was of
> type Component'Class and Button was a derived type from Component?
if Target in Button then...end if;
if you wanted to know if Target is "classified" as a button (a direct
instance of _some_ type derived directly or indirectly from Button
or Button itself) you write
if Target in Button'Class then ... end if;
/Jon
--
Jon Anthony
Organon Motives, Inc.
1 Williston Road, Suite 4
Belmont, MA 02178
617.484.3383
jsa@organon.com
prev parent reply other threads:[~1996-08-16 0:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
1996-08-15 0:00 Alright, now for an Ada '95 question Tom Di Sessa
1996-08-15 0:00 ` William W Pritchett
1996-08-15 0:00 ` Mike Bishop
1996-08-16 0:00 ` Mark A Biggar
1996-08-16 0:00 ` Jon S Anthony
1996-08-16 0:00 ` Tucker Taft
1996-08-16 0:00 ` Jon S Anthony [this message]
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