[#25936] [Bug:1.9] [rubygems] $LOAD_PATH includes bin directory — Nobuyoshi Nakada <nobu@...>

Hi,

10 messages 2009/10/05

[#25943] Disabling tainting — Tony Arcieri <tony@...>

Would it make sense to have a flag passed to the interpreter on startup that

16 messages 2009/10/05

[#26028] [Bug #2189] Math.atanh(1) & Math.atanh(-1) should not raise an error — Marc-Andre Lafortune <redmine@...>

Bug #2189: Math.atanh(1) & Math.atanh(-1) should not raise an error

14 messages 2009/10/10

[#26222] [Bug #2250] IO::for_fd() objects' finalization dangerously closes underlying fds — Mike Pomraning <redmine@...>

Bug #2250: IO::for_fd() objects' finalization dangerously closes underlying fds

11 messages 2009/10/22

[#26244] [Bug #2258] Kernel#require inside rb_require() inside rb_protect() inside SysV context fails — Suraj Kurapati <redmine@...>

Bug #2258: Kernel#require inside rb_require() inside rb_protect() inside SysV context fails

24 messages 2009/10/22

[#26361] [Feature #2294] [PATCH] ruby_bind_stack() to embed Ruby in coroutine — Suraj Kurapati <redmine@...>

Feature #2294: [PATCH] ruby_bind_stack() to embed Ruby in coroutine

42 messages 2009/10/27

[#26371] [Bug #2295] segmentation faults — tomer doron <redmine@...>

Bug #2295: segmentation faults

16 messages 2009/10/27

[ruby-core:25952] Re: Object#object_id can be duplicated for different objects

From: "Martin J. Dst" <duerst@...>
Date: 2009-10-06 02:50:46 UTC
List: ruby-core #25952
My guess is that this would need 4 bytes or so of additional memory per 
object.

Regards,   Martin.

On 2009/10/06 4:26, Howard Yeh wrote:
> Hi,
>
> I had a weird bug that took a long time to sort out because I naively
> thought Object#object_id would uniquely identify each Object.new
> instance. I am guessing MRI and YARV returns the address of the
> object. This means if an object gets recycled, that address could be
> reused, and the object_id repeated.
>
> It's understandable, but surprising.
>
> JRuby, on the other hand, returns a runtime counter as the object_id,
> just wondering if it would make sense to do something like that.
>
> Howard

-- 
#-# Martin J. Dst, Professor, Aoyama Gakuin University
#-# http://www.sw.it.aoyama.ac.jp   mailto:duerst@it.aoyama.ac.jp

In This Thread

Prev Next