rangeextension.rb

来自「二叉树详细源码」· RB 代码 · 共 20 行

class Range
  def reach()
    if self.exclude_end? then
      i = self.end - 1
    else
      i = self.end
    end
    
    end_value = self.begin
    
    while(i >= end_value) do
      yield i
      i -= 1
    end
  end
end