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Re: [Json] Minus Zero

John Cowan <cowan@mercury.ccil.org> Wed, 22 June 2016 20:31 UTC

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Date: Wed, 22 Jun 2016 16:31:39 -0400
From: John Cowan <cowan@mercury.ccil.org>
To: Anders Rundgren <anders.rundgren.net@gmail.com>
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Subject: Re: [Json] Minus Zero
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Anders Rundgren scripsit:

> I would have done the same.  -0.0 is as I understand as close to zero
> you can get.  The need for separating the -0.0 and 0.0 in real-world
> applications is probably 0.0 :-)

Well, if you make use of affine infinity (that is, you distinguish
Infinity from -Infinity), then you need two kinds of zeros, positive
and negative.  They are numerically equal, but are arithmetically
distinguishable.

> I just referred to the fact that -0 is not a useful way of serializing
> an integer,

True.

-- 
John Cowan          http://www.ccil.org/~cowan        cowan@ccil.org
Economists were put on this planet to make astrologers look good.
        --Leo McGarry

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