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From: Robert A Duff <bobduff@shell01.TheWorld.com>
Newsgroups: comp.lang.ada
Subject: Re: Is this expected behavior or not
Date: Wed, 13 Mar 2013 18:12:46 -0400
Organization: The World Public Access UNIX, Brookline, MA
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Date: 2013-03-13T18:12:46-04:00
List-Id: <comp.lang.ada>

"Dmitry A. Kazakov" <mailbox@dmitry-kazakov.de> writes:

> P.S. This is how Ada could finally get curly brackets  (:-)):
>
>    type Color is {Red, Green, Blue}; -- No order in public views

An early version of Ada (Green?) had unordered enumeration types.
I don't remember the syntax, but it didn't involve curly braces.  ;-)

GNAT has a pragma Ordered to mark an enumeration type as ordered,
and a switch -gnatw.u that tells the compiler to complain if
you use certain operations on unordered enums (unordered being
the default).

- Bob