From: Zangief Ief <z4n9ief@...>
Date: 2008-01-23T08:29:10+09:00
Subject: Re: Circular shift

Mental Guy wrote:

>  1. take 134                     (  10000110 )
>  2. split it into two parts      ( 100 00110 )
>  3. swap them                    ( 00110 100 )
>  4. put the result back together (  00110100 )
> 
> -mental

Wow, it's perfect! Sorry, I haven't understood because of the padding in 
the step 4. Now it's okay.

Here is an example of file:

block  = 753
shift  =   2
length = block.to_s(2).length
new_block = circular_shift_left(block, block.to_s(2).length, shift)
puts "input:  #{block.to_s(2)}"
puts "output: #{new_block.to_s(2)}"

And when I execute it:

$ ruby circular_shift.rb
input:  1011110001
output: 1111000110

THANKS A LOT :)
-- 
Posted via http://www.ruby-forum.com/.