From: Gavin Kistner <gavin@...>
Date: 2004-11-10T23:53:44+09:00
Subject: Re: Iterating trough hash

On Nov 9, 2004, at 9:08 AM, Kevin B�rgens wrote:
> I have a hash and I want to iterate trough all pairs of values. An 
> example:

It's for arrays, not hashes, but I have a #each_unique_pair method for 
arrays:

http://phrogz.net/RubyLibs/rdoc/classes/Array.html#M000066

Source code is:

         def each_unique_pair
                 self.each_with_index{ |a,i|
                         self[(i+1)..-1].each{ |b| yield a,b }
                 }
         end

With a little manipulation of the hash, you should be able to get it 
into a format that the above would work with.