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=2.2 required=5.0 tests=BAYES_00,FROM_WORDY, REPLYTO_WITHOUT_TO_CC autolearn=no autolearn_force=no version=3.4.4 X-Google-Language: ENGLISH,ASCII-7-bit X-Google-Thread: 103376,d2c21e8238e985b5 X-Google-Attributes: gid103376,public X-Google-ArrivalTime: 2002-05-25 11:07:02 PST Path: archiver1.google.com!news1.google.com!newsfeed.stanford.edu!news-spur1.maxwell.syr.edu!news.maxwell.syr.edu!feed2.news.rcn.net!feed1.news.rcn.net!rcn!not-for-mail From: "Frank J. Lhota" Newsgroups: comp.lang.ada Subject: Re: Extended modal types Date: Sat, 25 May 2002 14:06:09 -0400 Message-ID: References: <3CEDFF90.B94D7E32@yahoo.com> <5ee5b646.0205250757.60c9715a@posting.google.com> Reply-To: "Frank J. Lhota" X-Trace: UmFuZG9tSVb4yBz24FAGtGntGB9W+BfT1zokD5HdBPiNhhFfHvKPq/T1KxlUoBwH X-Complaints-To: abuse@rcn.com NNTP-Posting-Date: 25 May 2002 18:06:17 GMT X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2600.0000 X-Priority: 3 X-Newsreader: Microsoft Outlook Express 6.00.2600.0000 X-MSMail-Priority: Normal Xref: archiver1.google.com comp.lang.ada:24785 Date: 2002-05-25T18:06:17+00:00 List-Id: I think the real issue here is that for moduli other than powers of 2, e.g. type r is mod 446; the bitwise operations "and", "or", and "not" simply do not have any intuitive meaning. It may very well have been preferable for these operations to be undefined for mod 446.