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From: "Randy Brukardt" <randy@rrsoftware.com>
Newsgroups: comp.lang.ada
Subject: Re: Strings with discriminated records
Date: Tue, 29 May 2018 17:31:40 -0500
Organization: JSA Research & Innovation
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Date: 2018-05-29T17:31:40-05:00
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"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> wrote in message 
news:peegke$rt1$1@gioia.aioe.org...
...
> as a poor-man solution to supertyping. I.e. if it were possible to make 
> Message a subtype of String (by providing conversions), you could simply 
> write:
>
>    M : Message := "Hello World";

Or you could just give string literals to type Message (although you'll have 
to wait a bit for that capability -- but it should be in Ada 2020 - 
finally).

                                    Randy.