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Re: [Json] -0.0

Carsten Bormann <cabo@tzi.org> Fri, 27 September 2013 09:38 UTC

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From: Carsten Bormann <cabo@tzi.org>
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Date: Fri, 27 Sep 2013 11:37:38 +0200
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To: "\"Martin J. Dürst\"" <duerst@it.aoyama.ac.jp>
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Subject: Re: [Json] -0.0
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> burden of proof

http://www.ietf.org/mail-archive/web/json/current/msg01523.html

I didn't reply to Rob's email because that already had been done.

> a small number of implementations

Since one's complement fell out of favor some 40 years ago, no platform representation of integers has had a distinct negative zero.

A large number of JSON implementations map a subset JSON numbers to platform integers.
(Mostly those on platforms that do not have integers don't.)
(There is less commonality on the exact subset than one would like.)

I would venture the guess that *all* of these implementations lose the distinction of negative zeros for that subset they do map to integers.

*All* of a large subset is not a small number.

Grüße, Carsten

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