From: "Wolfgang Nádasi-Donner" <wonado@...>
Date: 2007-02-03T18:30:10+09:00
Subject: Re: Inheriting from Fixnum

gga schrieb:
> Now... this should be simple, but, alas, it is not.
> I'm creating some special numeric classes, and I wanted to derive from
> Fixnum, for example.

There is no "new" for "Fixnum"

irb(main):001:0> k = Fixnum.new
NoMethodError: undefined method `new' for Fixnum:Class
         from (irb):1

So it doesn't make sense to inherit from "Fixnum". The same ist true for 
"Bignum" and "Float".

irb(main):001:0> i = Bignum.new
NoMethodError: undefined method `new' for Bignum:Class
         from (irb):1
irb(main):002:0> r = Float.new
NoMethodError: undefined method `new' for Float:Class
         from (irb):2

Wolfgang N�dasi-Donner