[#11439] comments needed for Random class — "NAKAMURA, Hiroshi" <nakahiro@...>

-----BEGIN PGP SIGNED MESSAGE-----

15 messages 2007/06/12

[#11450] Re: new method dispatch rule (matz' proposal) — David Flanagan <david@...>

This is a late response to the very long thread that started back in

17 messages 2007/06/13

[#11482] Ruby Changes Its Mind About Non-Word Characters — James Edward Gray II <james@...>

Does this look like a bug to anyone else?

10 messages 2007/06/16

[#11505] Question about the patchlevel release cycle — Sylvain Joyeux <sylvain.joyeux@...4x.org>

1.8.6 thread support was broken in bad ways. It stayed for three months

20 messages 2007/06/20
[#11512] Re: Question about the patchlevel release cycle — Urabe Shyouhei <shyouhei@...> 2007/06/20

Hi, I'm the 1.8.6 branch manager.

[#11543] Re: Apple reportedly to ship with ruby 1.8.6-p36 unless informed what to patch — James Edward Gray II <james@...>

On Jun 27, 2007, at 4:47 PM, Bill Kelly wrote:

10 messages 2007/06/27

Odd beaviour with Fixnum#div on negative numbers with floats

From: Florian Gross <florgro@...>
Date: 2007-06-07 13:55:46 UTC
List: ruby-core #11426
Hi,

I'm just going through Rubinius' specification suite making sure that  
the specs correctly match Matz' Ruby
behaviour.

Here's something odd I discovered (same behaviour on 1.8.4  
(2005-12-24) and 1.9.0 (2007-04-02)):

irb(main):001:0> -1.div(2.0)
=> 0
irb(main):002:0> -1.div(2)
=> -1
irb(main):003:0> -1.divmod(2.0)
=> [-1.0, 1.0]
irb(main):004:0> -1.divmod(2)
=> [-1, 1]

I'm on i686-darwin8.8.1. For PPC -1.div(2.0) produces -1.

I think that the behaviour of .div should match .divmod in all cases  
for consistency reasons, but if there is
a good explanation for the behaviour, please feel free to enlighten me.

Thank you!

Kind regards,
Florian Gross

In This Thread

Prev Next