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From: gwyn@brl-smoke.ARPA (Doug Gwyn )
Newsgroups: comp.lang.c
Subject: Re: bit patterns of all ones
Message-ID: <5540@brl-smoke.ARPA>
Date: Tue, 20-Jan-87 03:56:30 EST
Article-I.D.: brl-smok.5540
Posted: Tue Jan 20 03:56:30 1987
Date-Received: Tue, 20-Jan-87 23:24:59 EST
References: <1382@hoptoad.uucp> <690001@hplsla.HP.COM> <1527@hoptoad.uucp> <408@hadron.UUCP> <599@mcgill-vision.UUCP>
Reply-To: gwyn@brl.arpa (Doug Gwyn (VLD/VMB) <gwyn>)
Organization: Ballistic Research Lab (BRL), APG, MD.
Lines: 8

In article <599@mcgill-vision.UUCP> mouse@mcgill-vision.UUCP (der Mouse) writes:
>Does ANSI explicitly require binary arithmetic?

For purposes of signed<->unsigned conversion of parameters
and bitwise operations, X3J11 decreed semantics "as if" a
binary numeration system were used.  The underlying architecture
can, however, be quite different, so long as the implementation
properly mimics the abstract machine.