From: Heesob Park <phasis@...>
Date: 2010-03-20T14:37:46+09:00
Subject: Re: is there any way to fin 32 bit or 64 bit version?

2010/3/19 Daniel Berger <djberg96@gmail.com>:
>
>
> On Mar 18, 11:02 pm, dare ruby <mar...@angleritech.com> wrote:
>> Dear friends,
>>
>> Is there any way to find whether the installed ruby is of 32 bit version
>> or 64 bit version.
>
> -1.size > 4 ? "64Bit" : "32Bit"
>
That's not true for MS Windows.

c:\work\ruby-1.9.1-p376>ruby -ve 'p(-1.size)'
ruby 1.9.1p376 (2009-12-07 revision 26041) [x64-mswin64_90]
4

Try:
['a'].pack('P').length  > 4 ? "64Bit" : "32Bit"

Regards,

Park Heesob