From: ts <decoux@...>
Date: 2002-05-31T23:19:13+09:00
Subject: Re: Array Uniq

>>>>> "S" == Stephan J Schmidt <stephan.schmidt@neotis.de> writes:

S> this didn't work, any idea what I do wrong ?

 Here an example

pigeon% cat b.rb
#!/usr/bin/ruby
class A
   attr_reader :iod
   def initialize(oid)
      @iod = oid
   end
   def hash
      @iod.hash
   end
   def eql?(b)
      if b.kind_of?(A)
         @iod.eql?(b.iod)
      else
         false
      end
   end
end

a = []
a.push A.new(12), A.new(12), A.new(34), A.new(34)
p a
p a.uniq!
pigeon% 

pigeon% b.rb
[#<A:0x401b9838 @iod=12>, #<A:0x401b97fc @iod=12>, #<A:0x401b97c0 @iod=34>, #<A:0x401b9734 @iod=34>]
[#<A:0x401b9838 @iod=12>, #<A:0x401b97c0 @iod=34>]
pigeon% 


Guy Decoux