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From: bobduff@world.std.com (Robert A Duff)
Subject: Re: Prevalence of Compilers for Which Integer'Size < 32?
Date: 1996/07/28
Date: 1996-07-28T00:00:00+00:00	[thread overview]
Message-ID: <Dv9Iwu.AEC@world.std.com> (raw)
In-Reply-To: 4tdp24$5h1@news.pacifier.com


In article <4tdp24$5h1@news.pacifier.com>,
Steve Doiel <steved@pacifier.com> wrote:
>  type
>    anInt32 is range -21474_83648 .. 21474_83647;

What's wrong with:

    type anInt32 is range -2**31 .. 2**31-1;

?

Also, a useful technique is:

    type Dummy is range -1_000_000_000 .. 1_000_000_000;
    subtype My_Int is Dummy'Base;

or

    subtype My_Int is Dummy'Base range Dummy'Base'First..Dummy'Base'Last;

which will give you a reasonably efficient range that is at least minus
a billion to a billion.

- Bob




  reply	other threads:[~1996-07-28  0:00 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
1996-07-26  0:00 Prevalence of Compilers for Which Integer'Size < 32? Dave Marshall
1996-07-27  0:00 ` steved
1996-07-28  0:00   ` Robert A Duff [this message]
1996-07-30  0:00     ` Ken Garlington
1996-07-30  0:00       ` Robert Dewar
1996-08-01  0:00         ` steved
     [not found]         ` <31FF5CF0.5C13@lmtas.lmco.com>
1996-08-03  0:00           ` Robert Dewar
1996-08-07  0:00             ` Ken Garlington
1996-07-28  0:00   ` Dave Marshall
1996-07-28  0:00     ` Robert Dewar
1996-07-28  0:00     ` Robert A Duff
1996-07-28  0:00       ` Robert Dewar
1996-07-29  0:00         ` Robert A Duff
1996-07-28  0:00     ` steved
  -- strict thread matches above, loose matches on Subject: below --
1996-07-28  0:00 tmoran
1996-07-29  0:00 ` John Herro
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