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From: "David C. Hoos, Sr." <david.c.hoos.sr@ada95.com>
Subject: Re: bitwise comparators
Date: 2000/01/15
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Alexander Van Hecke <alexke@hotmail.com> wrote in message
news:3880D375.7E363123@hotmail.com...
> hello,
>
> I want to do the following :
> OK_to_proceed : BOOLEAN := FALSE;
> data : Unsigned_8;
>
> while (not OK_to_proceed) loop
>     -- do stuff
>     OK_to_proceed := (data BITWISE AND 2#1#);
> end loop;
>
> so I want to exit the loop if bit one of data is set, but I don't know
> what the bitwise and is!
Do you have a copy of the Ada Language Reference Manual?

If so, a search for bit-wise reveals that bit-wise logical operators
are defined for modular types.

If not, the Reference Manual is distributed in Windows Help file
format with GNAT for winnt, or is available at
ftp://ftp.cs.nyu.edu/pub/gnat/rm9x-v5.95/ in two formats,
and browsable HTML form at http://www.adapower.com/rm95/index.html

It's amazing how many questions can be answered by perusing the
readily-available resources.