From: "Shot (Piotr Szotkowski)" <shot@...>
Date: 2009-04-17T01:29:58+09:00
Subject: [ruby-core:23221] Re: [Bug #1336] Change in string	representation of Floats


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Gary Wright:

> IEEE also defines negative 0.0, which
> has interesting behavior in Ruby  (1.8):

> >> z =3D 0.0
> >> nz =3D -0.0
> >> p z
> 0.0
> =3D> nil
> >> p nz
> -0.0
> =3D> nil
> >> z =3D=3D nz
> =3D> true
> >> z.eql? nz
> =3D> true

> I would have thought that z.eql?(nz) might be false. There doesn't=20
> seem to be a way to query a float to distinguish between -Infinity
> and Infinity

These actually aren=E2=80=99t =3D=3D, eql? nor equal?

> or between -0.0 and 0.0 other than via #to_s.

-0.0.equal? 0.0 # =3D> false

=E2=80=94 Shot
--=20
Nobody came to my trombone recital. I wish there was some
way to express how I feel right now. [Joshua Green Allen]

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