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Date: Sun, 02 Apr 2006 12:55:17 +0200
From: Georg Bauhaus <bauhaus@futureapps.de>
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Newsgroups: comp.lang.ada
Subject: Re: Advice on low level file handling.
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Date: 2006-04-02T13:54:19+02:00
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Peter C. Chapin wrote:

> Also I need to count the number of bytes I process and the quantity may 
> exceed 2**32. I can define a 64 bit modular type and that seems to work 
> fine on gnat. Is that portable? I'm not extremely worried about 
> portability, but I'd rather not sacrifice it for no reason.

That's nice to hear when someone at least thinks about
portability :-)

package More is

   type Count is range 0 .. 2**50;

end More;

with More;
procedure More.try_it is
   x: Count;
begin
   x := 2**40;
end;

Using similar front ends (first is ObjectAda for Windows native,
second is AppletMagic), but different backends,

...\> adamake more.try_it
more.ada: Error: line 3 col 26 LRM:3.5.4(6),
  subtype bounds must be between System.Min_Int and System.Max_Int,
  returning plastic subtype
(etc, failing)

... \> adajava more.try_it

Front end of ..\more.ads succeeded with no errors.