From: mheaney@ni.net (Matthew Heaney)
Subject: Re: QUIZ: To be or not to be (able to post)
Date: 1997/09/30
Date: 1997-09-30T00:00:00+00:00 [thread overview]
Message-ID: <mheaney-ya023680003009970443150001@news.ni.net> (raw)
In-Reply-To: 60n3dm$fhi$1@gonzo.sun3.iaf.nl
In article <60n3dm$fhi$1@gonzo.sun3.iaf.nl>, Geert Bosch
<geert@gonzo.sun3.iaf.nl> wrote:
>OK, here is a nice question for all you Ada experts out there.
>Why isn't the code below not legal? Or is it? If so, why?
>
> with Ada.Numerics.Elementary_Functions;
> procedure Renaming is
>
> function Sin (F : Float) return Float;
>
> function Sin (X : Float'Base) return Float'Base
> renames Ada.Numerics.Elementary_Functions.Sin;
>
> begin
> null;
> end Renaming;
Isn't this a "co-resident homograph"? Float is a subtype of Float'Base,
and subtypes can't be used to resolve ambiguity. Only types are part of a
signiture, not subtypes.
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Matthew Heaney
Software Development Consultant
<mailto:matthew_heaney@acm.org>
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next prev parent reply other threads:[~1997-09-30 0:00 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-09-29 0:00 QUIZ: To be or not to be (able to post) Geert Bosch
1997-09-30 0:00 ` Tucker Taft
1997-09-30 0:00 ` Matthew Heaney [this message]
1997-10-02 0:00 ` Joel VanLaven
1997-10-02 0:00 ` Tucker Taft
1997-10-02 0:00 ` Joel VanLaven
1997-10-03 0:00 ` Robert A Duff
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