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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Effective use of derived types
Date: Fri, 25 Jul 2014 19:38:43 +0200
Organization: cbb software GmbH
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Date: 2014-07-25T19:38:43+02:00
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On Fri, 25 Jul 2014 19:40:27 +0300, Victor Porton wrote:

> I write an Ada library (in fact thick bindings to a C library), which (among 
> other) deals with some strings, including URIs.
> 
> Should I introduce new type for URI strings?

Yes.

> type URI_String is new String;

No.

URI is not a string. It has a textual representation, which is a string
(one of many types of strings). If you want a type for URI it should keep
its fields. You will have functions alike to attributes Value and Image to
convert URI from and to String.

-- 
Regards,
Dmitry A. Kazakov
http://www.dmitry-kazakov.de