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Re: How to simulate C style integer division?

From Jussi Piitulainen <jussi.piitulainen@helsinki.fi>
Newsgroups comp.lang.python
Subject Re: How to simulate C style integer division?
Date 2016-01-21 11:58 +0200
Organization A noiseless patient Spider
Message-ID <lf5fuxrl0em.fsf@ling.helsinki.fi> (permalink)
References <CAJQX3DyoDUtNWbNEpGVJxeKATADWAikP47NRZb7+UaxSwSRZaQ@mail.gmail.com> <mailman.143.1453367498.15297.python-list@python.org> <87io2np8rw.fsf@nightsong.com>

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Paul Rubin writes:

> Ben Finney writes:
>> I'm not sure I know exactly what behaviour you want (“C style” may mean
>> different things to each of us).
>
> I thought he meant trunc-division, so -5 / 2 = -2 and -5 % 2 = -1.
> Python specifies floor division but C leaves it unspecified, I thought.

I found a statement that it's specified to be truncating since C99.
Before that it was flooring or truncating.

Reading OP's code, the intention seemed clear to me.

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Thread

Re: How to simulate C style integer division? Ben Finney <ben+python@benfinney.id.au> - 2016-01-21 20:11 +1100
  Re: How to simulate C style integer division? Paul Rubin <no.email@nospam.invalid> - 2016-01-21 01:43 -0800
    Re: How to simulate C style integer division? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-21 11:58 +0200
  Re: How to simulate C style integer division? Steven D'Aprano <steve@pearwood.info> - 2016-01-21 23:42 +1100
    Re: How to simulate C style integer division? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-21 16:00 +0200
      Re: How to simulate C style integer division? Marko Rauhamaa <marko@pacujo.net> - 2016-01-21 16:31 +0200
        Re: How to simulate C style integer division? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-21 16:48 +0200
        Re: How to simulate C style integer division? Random832 <random832@fastmail.com> - 2016-01-21 14:52 -0500
          Re: How to simulate C style integer division? Marko Rauhamaa <marko@pacujo.net> - 2016-01-21 23:17 +0200
            Re: How to simulate C style integer division? Matt Wheeler <m@funkyhat.org> - 2016-01-22 00:51 +0000
      Re: How to simulate C style integer division? Wolfgang Maier <wolfgang.maier@biologie.uni-freiburg.de> - 2016-01-21 15:22 +0100

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