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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Using a generic instance to implement a public subprogram?
Date: Mon, 4 Feb 2008 19:58:52 -0600
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Date: 2008-02-04T19:58:52-06:00
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"Peter C. Chapin" <pchapin@sover.net> wrote in message
news:47a609b8$0$23664$4d3efbfe@news.sover.net...
...
> GNAT says this:
>
> check.adb:3:14: missing body for "Sqrt" declared at check.ads:5
> check.adb:21:13: "Sqrt" conflicts with declaration at check.ads:5
> check.adb:21:13: instantiation cannot provide body for it
>
> The first message I understand. The last two I'm not clear about. Is
> GNAT telling me that my declarations conflict in some way and because of
> that it can't do the instantiation, or is the instantiation the *cause*
> of the conflict? Is it possible to do what I'm trying to do here?

An instantiation cannot complete another declaration. You have to use a body
renaming for that, as someone else suggested.

Formally, an instantiation cannot be a completion. (See 3.11.1 for a
definition of completion.)

                    Randy.