From: Nobuyoshi Nakada <nobu@...>
Date: 2007-07-25T04:00:23+09:00
Subject: Re: Static variables in Ruby.

Hi,

At Tue, 24 Jul 2007 17:40:57 +0900,
Marcin Tyman wrote in [ruby-talk:261483]:
> Is any way to define static variables over function? As class static
> variables there is possible to define a static class variable as
> @@name_of_var. But I'm not sure if Ruby let define such variables in
> functions (like in C/C++)

  def foo(x)
    (0..0).instance_eval{x,@x = @x,x}
    x
  end
  3.times{|i|p foo(i)} #=> nil, 1, 2

The literal object can be Float, Regexp or Bignum, but Range
would be faster a bit.

-- 
Nobu Nakada