module Enumerable
	def to_a(n = nil)
		result = []
		inclusion_condition = true
		return result if n == 0 and !block_given?
		each do |*elements|
			if block_given?
				values = result.last
				inclusion_condition = yield(*values) unless values.nil?
			else
				inclusion_condition = n != result.size
			end
			if inclusion_condition
				result << elements
			else
				result.pop
				break result
			end
		end
		result
	end
end