From 26c490f404731d053a6205719b6246502c07b449 Mon Sep 17 00:00:00 2001 From: Patrick Simianer Date: Sat, 14 Jun 2014 16:46:27 +0200 Subject: init --- ruby/cmp.rb | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100755 ruby/cmp.rb (limited to 'ruby/cmp.rb') diff --git a/ruby/cmp.rb b/ruby/cmp.rb new file mode 100755 index 0000000..65e5c5f --- /dev/null +++ b/ruby/cmp.rb @@ -0,0 +1,29 @@ +#!/usr/bin/env ruby + + +class A + attr_accessor :a + + def initialize a + @a = a + end + + def == other + @a.size == other.a.size + end + alias :eql? :== + + def hash + @a.hash + end +end + +a = A.new 'a' +b = A.new 'b' +ax = A.new 'a' + +puts a == ax + +l = [a, b, ax] +puts l.uniq.size + -- cgit v1.2.3