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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 10:59 +0200
Organization A noiseless patient Spider
Message-ID <lf5k2n3l34h.fsf@ling.helsinki.fi> (permalink)
References <mailman.139.1453365561.15297.python-list@python.org>

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Shiyao Ma writes:

> I wanna simulate C style integer division in Python3.
>
> So far what I've got is:
> # a, b = 3, 4
>
> import math
> result = float(a) / b
> if result > 0:
>   result = math.floor(result)
> else:
>   result = math.ceil(result)
>
> I found it's too laborious. Any quick way?

The general principle is to define a function when something is too
laborious to do inline. def truncdiv(a, b): ...

But math.trunc rounds towards 0. Maybe you want to use that here.

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Thread

How to simulate C style integer division? Shiyao Ma <i@introo.me> - 2016-01-21 16:39 +0800
  Re: How to simulate C style integer division? "Peter Heitzer" <peter.heitzer@rz.uni-regensburg.de> - 2016-01-21 08:44 +0000
  Re: How to simulate C style integer division? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-21 10:59 +0200
    Re: How to simulate C style integer division? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-21 12:13 +0200
  Re: How to simulate C style integer division? Grobu <snailcoder@retrosite.invalid> - 2016-01-22 02:59 +0100
    Re: How to simulate C style integer division? Steven D'Aprano <steve@pearwood.info> - 2016-01-22 14:48 +1100
      Re: How to simulate C style integer division? Grobu <snailcoder@retrosite.invalid> - 2016-01-23 13:04 +0100
        Re: How to simulate C style integer division? Grobu <snailcoder@retrosite.invalid> - 2016-01-23 13:52 +0100
          Re: How to simulate C style integer division? Jussi Piitulainen <jussi.piitulainen@helsinki.fi> - 2016-01-23 17:07 +0200
            Re: How to simulate C style integer division? Grobu <snailcoder@retrosite.invalid> - 2016-01-23 17:44 +0100

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