From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: First attribute on Enumerated types
Date: 1999/02/24
Date: 1999-02-24T00:00:00+00:00 [thread overview]
Message-ID: <m3hfscfoqf.fsf@mheaney.ni.net> (raw)
In-Reply-To: 36D3678F.6C3CB1F6@aasaa.ofe.org
David Starner <dstarner98@aasaa.ofe.org> writes:
> Since I quickly composed the first message, here's the actual code.
> Color is definitely a type. It should be enumerated - is there any
> way to tell the compiler that? In retrospect, that's probably my error.
>
> with Lists;
> generic
> type Node_type is private;
> type Color is private;
> package Tree is
Say this instead:
generic
type Node_type is private;
type Color is (<>);
package Tree is
Read the section of the RM (or your fav textbook) that describes
"generic formal types."
next prev parent reply other threads:[~1999-02-24 0:00 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <001e01be5f9d$ebe4d7e0$5b824a0c@rogers>
1999-02-23 0:00 ` First attribute on Enumerated types David Starner
1999-02-24 0:00 ` Matthew Heaney [this message]
1999-02-24 0:00 ` John English
1999-02-24 0:00 ` Mark A Biggar
1999-02-23 0:00 David Starner
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