comparisons.rb

class MyArray < Array
	include Comparable
	
  # 配列の最小値で比較できるようにオーバーライド
	def <=> ( anotherArray )
		self.min <=> anotherArray.min
	end
end

myarr1   = MyArray.new([0,1,2,3])
myarr2   = MyArray.new([1,2,3,4])
myarr2   = MyArray.new([1,2,3,4])
myarr3   = MyArray.new([0,1,2,3,5])

puts( "MyArray" )
p( myarr1 < myarr2 )
p( myarr1 > myarr2 )
p( myarr1 == myarr2 )
p( myarr3 > myarr1 )
p( myarr3 <=> myarr1 )
p( myarr1 <=> myarr2 )
p( myarr2 == myarr2_2)