From: Jason Roelofs <jameskilton@...>
Date: 2008-04-01T03:24:46+09:00
Subject: Re: Modifying FIX::* method

The proper way is to implement and enforce "y * 2". Is there any
specific reason you want people to be able to do "2 * y" ?

Jason

On Mon, Mar 31, 2008 at 1:58 PM, Alex DeCaria
<alex.decaria@millersville.edu> wrote:
> I have a class such as
>
>  Class Foo
>   def initialize(x)
>     @x = x
>   end
>   attr_read :x
>  end
>
>  I want to be able to multiply a NUMERIC object by my Foo object and have
>  it return a new Foo object with all the instance variables multiplied by
>  the Numeric object.  For example:
>
>  y = Foo.new(3)
>  z = 2*y
>  print z.x => 6
>
>  or
>
>  z = 2.0*y
>  print z.x => 6.0
>
>  I'm thinking I have to modify the "*" method for all the subclasses of
>  the NUMERIC class.  Is this correct?  Or am I missing something.
>
>  I know I can put a "*" method in my Foo class, and get it to do things
>  like "y*2", but how do I get "2*y"?
>
>  Thanks in advance.
>  --
>  Posted via http://www.ruby-forum.com/.
>
>