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From: Matthew Heaney <matthew_heaney@acm.org>
Subject: Re: First attribute on Enumerated types
Date: 1999/02/24
Message-ID: <m3hfscfoqf.fsf@mheaney.ni.net>#1/1
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Sender: matt@mheaney.ni.net
References: <001e01be5f9d$ebe4d7e0$5b824a0c@rogers>
 <36D3678F.6C3CB1F6@aasaa.ofe.org>
NNTP-Posting-Date: Tue, 23 Feb 1999 19:43:14 PDT
Newsgroups: comp.lang.ada
Date: 1999-02-24T00:00:00+00:00
List-Id: <comp.lang.ada>

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."