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From: wheeler@aphrodite.csed.ida.org (David Wheeler)
Subject: Re: Booelan Function and sizeof operator
Date: 1996/04/12
Message-ID: <4kmns4$9bg@dmsoproto.ida.org>#1/1
X-Deja-AN: 147211518
references: <Pine.SOL.3.91.960410173604.18640A-100000@unixa.lancs.ac.uk>
organization: IDA, Alexandria, Virginia
newsgroups: comp.lang.ada
Date: 1996-04-12T00:00:00+00:00
List-Id: <comp.lang.ada>

EMANUELE COSTA (costa@UNIX.LANCS.AC.UK) wrote:
: Hi everybody,
:         I would like to know, if I can find something similar to the C
: sizeof operator and  boolean functions on integer  in Ada. If
: this is not the case how could I write something equal in Ada?


sizeof(int)  ===>   Integer'Size

I'm not sure what you mean by "boolean functions on integer".
If you want to _convert_ a Boolean to Integer, you can use 'Pos:

bool x;                   ==> X : Boolean;
printf("%d", (int) x);        Put(X'Pos);

If you mean "and", "or", etc., you can define a packed array of Booleans
and perform operations on the array.  In Ada 95, you can also use
modular types for "and", "or", etc.


--- David A. Wheeler
Net address: wheeler@ida.org