comp.lang.ada
 help / color / mirror / Atom feed
From: christoph.grein@eurocopter.com
Subject: Re: Enumeration representation clause surprise.
Date: Wed, 11 Jun 2008 05:30:35 -0700 (PDT)
Date: 2008-06-11T05:30:35-07:00	[thread overview]
Message-ID: <0cbb6daf-01e9-40f5-855c-4f1d45cb0096@m73g2000hsh.googlegroups.com> (raw)
In-Reply-To: g2odf9$3um$1@nntp.ilk.net

What you request for A1 seems impossible: Store value 2 = 2#01# in one
bit.

An illustrating example:

type My_Int is range 10_000 .. 10_001;

type My_Record is record
  I: My_Int;
end record;

for My_Record use record
  I at 0 range 0 .. 0;
end record;

This is allowed. My_Record holds only two values, so one bit is
enough. The compiler uses a so-called biased representation with
10_000 as bias, which need not be stored.

Hope this helps.



  reply	other threads:[~2008-06-11 12:30 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-06-11 11:38 Enumeration representation clause surprise Markus Schoepflin
2008-06-11 12:30 ` christoph.grein [this message]
2008-06-11 12:56   ` Markus Schoepflin
2008-06-11 13:08     ` christoph.grein
2008-06-11 13:28     ` Samuel Tardieu
2008-06-11 13:48       ` Markus Schoepflin
2008-06-11 13:56         ` Samuel Tardieu
2008-06-11 14:58       ` Adam Beneschan
2008-06-11 15:23         ` Markus Schoepflin
2008-06-12  2:37           ` Randy Brukardt
2008-06-12  2:37           ` Randy Brukardt
2008-06-11 15:56         ` Samuel Tardieu
2008-06-11 19:10           ` Adam Beneschan
2008-06-11 19:59             ` Niklas Holsti
2008-06-12  1:16               ` tmoran
2008-06-12  8:27                 ` christoph.grein
2008-06-12  8:45               ` Markus Schoepflin
2008-06-12 16:43                 ` Mike Silva
2008-06-12 18:41                   ` Markus Schöpflin
2008-06-12 20:10                     ` Mike Silva
2008-06-12 20:52                       ` Simon Wright
2008-06-12 23:36                         ` Mike Silva
2008-06-13  5:49                           ` Simon Wright
2008-06-13  7:21                       ` Keith Thompson
2008-06-13 13:31                         ` Mike Silva
2008-06-13 14:45                           ` Markus Schoepflin
2008-06-13 17:52                           ` Keith Thompson
2008-06-13  9:14                       ` Jean-Pierre Rosen
2008-06-12 19:05 ` richtmyer
2008-06-12 21:26   ` Samuel Tardieu
2008-06-12 22:42     ` Adam Beneschan
2008-06-13  7:11       ` Samuel Tardieu
2008-06-13  8:27       ` christoph.grein
2008-06-13 16:21         ` Adam Beneschan
2008-06-15 19:33           ` Robert A Duff
2008-06-16 14:50             ` Adam Beneschan
2008-06-16 19:18               ` Robert A Duff
2008-06-17  6:03               ` christoph.grein
2008-06-17  7:22                 ` christoph.grein
2008-06-13  8:24     ` Peter Hermann
2008-06-13 14:47       ` Samuel Tardieu
2008-06-14 11:48         ` John B. Matthews
replies disabled

This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox