Re: Signed vs Natural/32-bits vs 31 bits

[Martin Krischik <martin@krischik.com>]

skidmarks wrote:

> David Hoos in a private communication indicated that the least
> significant bit was (indeed) deleted. What is confusing about this
> dialog is that I thought that 'Unchecked_Conversion' meant that all
> bits were used and the bits were converted to the 'new' type. Under
> this impression, my thought was that I'd have a 32-bit Natural number.
> What I seem to be told is that that is not accurate and that
> 'Unchecked_Conversion' takes less liberties than I'd hoped. Any idea
> why?

No. But the solution is clear:

type Natural is new Standart.Natural;
for Natural'Size use 32;

or

X : Natural := 0;
for X'Size use 32;

And you have 2 32 bit types. If you don't like confusion people then you can
use My_Natural as identifier ;-).

With Regards

Martin
-- 
mailto://krischik@users.sourceforge.net
http://www.ada.krischik.com