Autoconvert object from one class1 to other class2 in class1 def

From	Luk Mus <support@fit4u.su>
Newsgroups	comp.lang.ruby
Subject	Autoconvert object from one class1 to other class2 in class1 def
Date	2011-04-05 03:02 -0500
Organization	Service de news de lacave.net
Message-ID	<5095fcbac456c1c2b31e5c05fbea960d@ruby-forum.com> (permalink)

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Is it possible to convert from one Class1 to another Class2 within the
functions of the Class1?

Example:

class String
 def to_i!
  self=self.to_i
 end
end

c='1' # c='1' - String
c.to_i! # c=1 - Integer

Previous code is wrong, error:
Can't change the value of self
    self=self.to_i

-- 
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Autoconvert object from one class1 to other class2 in class1 def Luk Mus <support@fit4u.su> - 2011-04-05 03:02 -0500
  Re: Autoconvert object from one class1 to other class2 in class1 def Luk Mus <support@fit4u.su> - 2011-04-05 03:19 -0500
  Re: Autoconvert object from one class1 to other class2 in class1 def Brian Candler <b.candler@pobox.com> - 2011-04-05 03:46 -0500
    Re: Autoconvert object from one class1 to other class2 in class1 def Luk Mus <support@fit4u.su> - 2011-04-05 04:15 -0500
      Re: Autoconvert object from one class1 to other class2 in class1 def Brian Candler <b.candler@pobox.com> - 2011-04-05 07:41 -0500
      Re: Autoconvert object from one class1 to other class2 in class1 def Adam Prescott <adam@aprescott.com> - 2011-04-05 07:50 -0500
      Re: Autoconvert object from one class1 to other class2 in class1 def Robert Klemme <shortcutter@googlemail.com> - 2011-04-05 07:56 -0500

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