From: Daniel Carrera <dcarrera@...>
Date: 2003-02-09T09:33:36+09:00
Subject: Re: help overloading operators


I'm still having trouble overloading operators.  Here is a minimal example 
that produces the error.  Perhaps someone can discern the problem.

$ cat test.rb 
class Poly
end
class Fixnum
    alias    plus  +
    def +(other)
        other.kind_of?(Poly) ? other.+(self) : self.plus(other)
    end
end
$ irb
>> require 'poly'
=> true
>> require 'complex'
=> true
>> 2 + Complex(1,1)
NoMethodError: undefined method `plus' for #<Complex:0x1a9d18>
        from ./poly.rb:122:in `plus'
        from ./poly.rb:122:in `+'
        from (irb):3
        from :0
>>

-- 
Daniel Carrera
Graduate Teaching Assistant.  Math Dept.
University of Maryland.  (301) 405-5137