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Groups > comp.lang.c > #85238

Re: K&R exercise 3-4 handle largest negative number implementation

From Keith Thompson <kst-u@mib.org>
Newsgroups comp.lang.c
Subject Re: K&R exercise 3-4 handle largest negative number implementation
Date 2016-03-29 08:56 -0700
Organization None to speak of
Message-ID <lny4911dn6.fsf@kst-u.example.com> (permalink)
References <d1bcdf9a-bb8c-4783-ac20-71ff2eb1a5b2@googlegroups.com> <glpifb1eh94iv045hugjqv596t3tn78pcm@4ax.com> <c7f1b100-3a36-4b3b-bfb1-72153c3d55de@googlegroups.com> <bpljfbdp362mgeamf62mqktdn8jqr3o2pq@4ax.com>

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Barry Schwarz <schwarzb@dqel.com> writes:
> On Mon, 28 Mar 2016 13:11:59 -0700 (PDT), supercat@casperkitty.com
> wrote:
>>On Monday, March 28, 2016 at 1:48:35 PM UTC-5, Barry Schwarz wrote:
>>> I wonder why K&R thought it advisable to work only with positive
>>> values.  The process of repeatedly using % and / works just as well
>>> with negative numbers if you use the absolute value of the remainder.
>>> When you do it that way, INT_MIN presents no special issue.
>>
>>K&R didn't specify whether "%" and "/" use Euclidian or truncated division
>>semantics.  Further, even if they had specified truncated division semantics,
>
> I don't know what you mean by Euclidian division but page 41 of K&R2
> specifies truncated division.

I'm guessing supercat is referring to K&R1 (or perhaps to Kernighan
and Ritchie themselves).  I'll check my copy of K&R1 later today.

supercat: If you're referring to Brian Kernighan and Dennis Ritchie,
I suggest not abbreviating their names to "K&R".  That term almost
universally refers to the book, not the people.

-- 
Keith Thompson (The_Other_Keith) kst-u@mib.org  <http://www.ghoti.net/~kst>
Working, but not speaking, for JetHead Development, Inc.
"We must do something.  This is something.  Therefore, we must do this."
    -- Antony Jay and Jonathan Lynn, "Yes Minister"

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Thread

K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-03-28 01:34 -0700
  Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-03-28 01:36 -0700
  Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-03-28 10:08 -0700
    Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-03-28 11:55 -0700
    Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-03-28 12:08 -0700
  Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-03-28 11:37 -0700
    Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-03-28 13:11 -0700
      Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-03-28 18:16 -0700
        Re: K&R exercise 3-4 handle largest negative number implementation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-03-29 03:17 +0100
          Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-03-28 22:10 -0700
            Re: K&R exercise 3-4 handle largest negative number implementation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-03-29 11:39 +0100
        Re: K&R exercise 3-4 handle largest negative number implementation Keith Thompson <kst-u@mib.org> - 2016-03-29 08:56 -0700
          Re: K&R exercise 3-4 handle largest negative number implementation Keith Thompson <kst-u@mib.org> - 2016-03-29 12:31 -0700
            Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-03-30 09:54 -0700
              Re: K&R exercise 3-4 handle largest negative number implementation Keith Thompson <kst-u@mib.org> - 2016-03-30 12:03 -0700
                Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-03-30 14:00 -0700
    Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-03-30 03:41 -0700
      Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-03-30 10:26 -0700
        Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-04-01 04:41 -0700
          Re: K&R exercise 3-4 handle largest negative number implementation Richard Heathfield <rjh@cpax.org.uk> - 2016-04-01 13:33 +0100
          Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-04-01 09:23 -0700
        Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-04-01 04:53 -0700
          Re: K&R exercise 3-4 handle largest negative number implementation Barry Schwarz <schwarzb@dqel.com> - 2016-04-01 09:10 -0700
            Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-04-02 00:41 -0700
              Re: K&R exercise 3-4 handle largest negative number implementation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-04-02 11:07 +0100
        Re: K&R exercise 3-4 handle largest negative number implementation Alla _ <modelling.data@gmail.com> - 2016-04-02 01:03 -0700
    Re: K&R exercise 3-4 handle largest negative number implementation Tim Rentsch <txr@alumni.caltech.edu> - 2016-03-30 10:05 -0700
      Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-03-30 10:15 -0700
        Re: K&R exercise 3-4 handle largest negative number implementation Tim Rentsch <txr@alumni.caltech.edu> - 2016-04-05 12:25 -0700
          Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-04-05 14:09 -0700
            Re: K&R exercise 3-4 handle largest negative number implementation asetofsymbols@gmail.com - 2016-04-05 22:49 -0700
              Re: K&R exercise 3-4 handle largest negative number implementation Richard Heathfield <rjh@cpax.org.uk> - 2016-04-06 07:16 +0100
                Re: K&R exercise 3-4 handle largest negative number implementation BartC <bc@freeuk.com> - 2016-04-06 11:24 +0100
                Re: K&R exercise 3-4 handle largest negative number implementation asetofsymbols@gmail.com - 2016-04-06 10:27 -0700
                Re: K&R exercise 3-4 handle largest negative number implementation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-04-06 11:46 +0100
                Re: K&R exercise 3-4 handle largest negative number implementation Richard Heathfield <rjh@cpax.org.uk> - 2016-04-06 12:48 +0100
                Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-04-06 08:36 -0700
                Re: K&R exercise 3-4 handle largest negative number implementation supercat@casperkitty.com - 2016-04-06 07:59 -0700
            Re: K&R exercise 3-4 handle largest negative number implementation Tim Rentsch <txr@alumni.caltech.edu> - 2016-05-05 11:51 -0700
  Re: K&R exercise 3-4 handle largest negative number implementation programming109@gmail.com - 2016-04-11 07:25 -0700
    Re: K&R exercise 3-4 handle largest negative number implementation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-04-11 19:38 +0100
      Re: K&R exercise 3-4 handle largest negative number implementation programming109@gmail.com - 2016-04-11 12:14 -0700
        Re: K&R exercise 3-4 handle largest negative number implementation Ben Bacarisse <ben.usenet@bsb.me.uk> - 2016-04-11 20:32 +0100

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