From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <775b8d190512160713u1e416e4el315f98f9d4e8227d@mail.gmail.com>
Date: Sat, 17 Dec 2005 02:13:46 +1100
From: Bruce Ellis <bruce.ellis@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
Subject: Re: [9fans] More Microsoft bashing
In-Reply-To: <4fe40a6eaaea00ef3c10298bb6a642c6@coraid.com>
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References: <20051216050830.GE15067@augusta.math.psu.edu>
	<4fe40a6eaaea00ef3c10298bb6a642c6@coraid.com>
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Sorry - I thought we were talking about C.  Does plan9 have an
Oberon environment these days?

brucee

On 12/17/05, Brantley Coile <brantley@coraid.com> wrote:
>        0 <=3D (x MOD y) < y  or  y < (x MOD y) <=3D 0
>
>                -- `Programming in Oberon,' M. Reiser and N. Wirth, Page 3=
6.
>                (which is available as a pdf from the web)
>
> > On Thu, Dec 15, 2005 at 10:53:06PM -0600, erik quanstrom wrote:
> >> | Please note that this definition of DIV and MOD differs from the
> >> | definition given in [M. Reiser, N. Wirth. Programming in Oberon. p.
> >> | 36]:
> >> | x  =3D (x DIV y) * y + (x MOD y), and
> >> | 0 <=3D (x MOD y) < y
> >     ^^^^^^^^^^^^^^^^^^
> >> |
> >> | So, what *is* -5 MOD 3?
> >> |
> >>
> >> -2
> >
> > Are you sure?  It looks to me more than it'd be +1.  Wirth's definition
> > above would tend to indicate that x MOD y is always positive, unless I'=
m
> > reading it wrong, or that's not the whole story (and I confess I'm too
> > lazy to look up the definitions in context).  If I'm right, that would
> > also imply that x DIV y tends more wards negative infinity than zero
> > for negative numerators.
> >
> >       - Dan C.
>
>