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From: "Martin Dowie" <martin.dowie@nospam.baesystems.com>
Subject: Re: Restrictions on compilers for Microsoft's .NET project
Date: Mon, 11 Feb 2002 17:34:04 -0000
Date: 2002-02-11T17:34:04+00:00	[thread overview]
Message-ID: <3c680086@pull.gecm.com> (raw)
In-Reply-To: uzo2geyyf.fsf@gsfc.nasa.gov

> Note that this says that non-overlapped variants are ok. Ada only
> allows non-overlapped variants.

er, shurely shome mishtake?...

it does allow them to be overlapping (via 'Size or a rep spec) but
e.g.
   type A_Variant (Value : Foo := Foo'First) is record
      case Value is
         when Bar1 =>
            Int : Integer;
         when Bar2 =>
            Bool : Boolean;
      end case;
   end record;
   for A_Variant'Size use 64;

but you do have to make a positive decision to do it and to do
and you can't just change to the other variant without again
doing something explicit (e.g. uncheck conversion, or a whole
record assignment).





  parent reply	other threads:[~2002-02-11 17:34 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2002-02-09 23:31 Restrictions on compilers for Microsoft's .NET project Larry Kilgallen
2002-02-10  5:26 ` Britt Snodgrass
2002-02-11 16:59 ` Stephen Leake
2002-02-11 17:25   ` Larry Kilgallen
2002-02-11 17:34   ` Martin Dowie [this message]
2002-02-11 18:07     ` Larry Kilgallen
2002-02-11 19:20       ` Martin Dowie
2002-02-11 19:31   ` Jerry Petrey
2002-02-12  2:21     ` Robert Dewar
2002-02-12  3:22       ` Larry Kilgallen
2002-02-12 16:33         ` Stephen Leake
2002-02-12 19:26           ` Larry Kilgallen
2002-02-13  2:00         ` Richard Riehle
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