From: Luk Mus <support@...4u.su>
Date: 2011-04-05T17:02:26+09:00
Subject: Autoconvert object from one class1 to other class2 in class1 def

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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