From: Matthias Reitinger <reitinge@...>
Date: 2009-04-29T05:14:57+09:00
Subject: Re: Detecting -0.0

Thomas B. wrote:
> I have a simple question - how to detect if a variable contains a Float
> of value -0.0? Is there any special method for this, or any comparison
> that distinguishes negative zero from a the regular zero?

  irb(main):001:0> 1/-0.0 < 0
  => true
  irb(main):002:0> 1/0.0 < 0
  => false

-Matthias
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