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Date: Sun, 24 Nov 2013 02:37:57 -0800
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To: Tjerk Meesters <tjerk.meesters@gmail.com>
Cc: Derick Rethans <derick@php.net>, PHP Internals <internals@lists.php.net>
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Subject: Re: [PHP-DEV] rfc: pow-operator
From: kris.craig@gmail.com (Kris Craig)

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On Sat, Nov 23, 2013 at 10:58 PM, Tjerk Meesters
<tjerk.meesters@gmail.com>wrote:

>
> To support the latter "-3 ** 2 == 9" we would require a unary minus that
> has a higher precedence than the exponent operator and as such falls
> outside of the scope of this RFC.
>
> That said, I'm not even sure whether we can support a unary minus with the
> current parser.
>
>

Ok, I can accept that argument.  I'm tempted to chase that unary rabbit
down the hole further, but as you said that would take us off-topic.

I'll just ask this, then:  Hypothetically, if a unary minus for negative
numbers was added in the future, how would that affect the behavior being
discussed here with the proposed ** operator?  I.e. if we had "-3 ** 2"
with a unary minus, would the outcome be 9 or -9?

--Kris

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