From mboxrd@z Thu Jan  1 00:00:00 1970
X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on polar.synack.me
X-Spam-Level: 
X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,INVALID_MSGID
	autolearn=no autolearn_force=no version=3.4.4
X-Google-Language: ENGLISH,ASCII-7-bit
X-Google-Thread: 103376,6da15369b6c53c77
X-Google-Attributes: gid103376,public
From: "David C. Hoos, Sr." <david.c.hoos.sr@ada95.com>
Subject: Re: LLQ: -1 a valid boolean?
Date: 2000/05/24
Message-ID: <0wOW4.27734$T41.665890@newsread1.prod.itd.earthlink.net>#1/1
X-Deja-AN: 626664523
Content-Transfer-Encoding: 7bit
References: <39253CD0.C8DC893D@telepath.com> <8g8o3b$9l0$1@nnrp1.deja.com>
 <8ge39b$g45$1@nnrp1.deja.com> <8gebvj$20i$1@hobbes2.crc.com>
 <8gfe1m$enu$1@nnrp1.deja.com>
X-Priority: 3
Content-Type: text/plain; charset="iso-8859-1"
X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2314.1300
X-Complaints-To: abuse@earthlink.net
X-Trace: newsread1.prod.itd.earthlink.net 959165564 158.252.122.135 (Wed,
 24 May 2000 03:52:44 PDT)
Organization: Ada95 Press, Inc.
X-MSMail-Priority: Normal
MIME-Version: 1.0
NNTP-Posting-Date: Wed, 24 May 2000 03:52:44 PDT
Newsgroups: comp.lang.ada
Date: 2000-05-24T00:00:00+00:00
List-Id: <comp.lang.ada>


Robert Dewar <robert_dewar@my-deja.com> wrote in message
news:8gfe1m$enu$1@nnrp1.deja.com...
> In article <8gebvj$20i$1@hobbes2.crc.com>,
>   "David C. Hoos, Sr." <david.c.hoos.sr@ada95.com> wrote:
> > return To_Bool_Ptr(Addr).all;
> >
> > might look a little less "silly" than
> >
> >    if To_Bool_Ptr(Addr).all then
> >       return True;
> >    else
> >       return False;
> >    end if;
>
> But the return statement *obviously* would not work in this
> context, since we know that the value is abnormal! We can
> see why the if statement might in practice work, but for
> sure the return statement will not work (be sure to read
> the earlier messages in this thread, don't just examine
> the above code at face value!)
>
I certainly stand corrected if there was some earlier
definition of To_Bool_Ptr that would have enabled me to see
that "we know that the value is abnormal!"  I had searched
for To_Bool_Ptr in my newsreader's comp.lang.ada messages,
and found no prior reference, so I (foolishly) assumed that
it was a function returning a not abnormal value.