From: Roman Rytov <rrytov@...>
Date: 2002-12-02T10:03:13+09:00
Subject: MultiMap

I wanted to create a MultiMap so for a key it stores not a single value
but an Array. The code is like that:

 class MultiMap < Hash

 def store (key, value)
    if !super[key] 
      dat = Array.new
      super[key]=dat  #*
    end
	 super[key].push(value)
 end

For some reason it doesn't work. I found by logging that even after line
* if I call super[key] I still get nil. What's wrong with the code?