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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
Message-ID: <Dv9Iwu.AEC@world.std.com>#1/1
X-Deja-AN: 170646860
references: <dmarshalDv4vLI.D6E@netcom.com> <4tdp24$5h1@news.pacifier.com>
organization: The World Public Access UNIX, Brookline, MA
newsgroups: comp.lang.ada
Date: 1996-07-28T00:00:00+00:00
List-Id: <comp.lang.ada>


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