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Re: [Chicken-hackers] [PATCH] Distinguish between positive and negative
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From: |
Peter Bex |
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Subject: |
Re: [Chicken-hackers] [PATCH] Distinguish between positive and negative zero in flonums |
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Date: |
Mon, 29 Jul 2019 11:43:57 +0200 |
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User-agent: |
Mutt/1.10.1 (2018-07-13) |
On Sun, Jul 28, 2019 at 05:06:27PM +1200, Evan Hanson wrote:
> One thing I noticed is that now (signum -0.0) => -0.0. Does that seem
> right? If so, it may be worth documenting that it's both exactness and
> sign-preserving.
It's probably correct. SBCL does the same:
* (signum 0.0)
0.0
* (signum -0.0)
-0.0
Cheers,
Peter
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