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From: "Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de>
Newsgroups: comp.lang.ada
Subject: Re: Community Input for the Maintenance and Revision of the Ada
 Programming Language
Date: Tue, 12 Sep 2017 18:59:05 +0200
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Xref: news.eternal-september.org comp.lang.ada:48072
Date: 2017-09-12T18:59:05+02:00
List-Id: <comp.lang.ada>

On 2017-09-12 18:47, Egil H H wrote:
> On Tuesday, September 12, 2017 at 6:40:53 PM UTC+2, Dmitry A. Kazakov wrote:
>>
>> Do you imply that Bounded_String deploys heap? I would consider such
>> implementation a bug. Otherwise you will need two instances and two
>> different types, which is not the intended use.
> 
> No, but they don't use default discriminants....

Right, but discriminant is a natural way to express constraint in Ada. 
Formal generic parameter is a very bad way doing that.

As for having default value it is a requirement to have the type 
constrained, which is a requirement to make assignment work. Which has 
undesired implications on the type representation. Sigh.

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