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From: matthew_heaney@acm.org (Matthew Heaney)
Subject: Re: Help needed in port to GNAT95 from verdix
Date: 1998/05/14
Message-ID: <matthew_heaney-ya023680001405982226590001@news.ni.net>#1/1
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 <355B227D.2858F2BD@elca-matrix.ch> <355B319B.BAFDC332@earthling.net>
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Date: 1998-05-14T00:00:00+00:00
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In article <355B319B.BAFDC332@earthling.net>, Charles Hixson
<charleshixson@earthling.net> wrote:

(start of quote)
It seems to me that I have been reading that it should be:
type Byte is -128..127;
or it won't fit into 8 bits, which certainly seems to be what you are
planning here.  Something about values requiring symmetry around 0?
(end of quote)

No - that was my fault.  I was trying to figure out why the size of an
object wasn't being set to 8 bits as requested, but I my hypothesis re the
range of the base type was incorrect.  Sorry for the confusion.

Anyway, if you need a data type to represent a raw, uninterpreted sequence
of 8 bits (ie byte), then use the types in Interfaces.  That is a
predefined package, and so the types are already declared for you. 
Something like

type Byte is new Interfaces.Unsigned_8;