-----Original Message-----
From: Greg Ewing <greg.ew...@canterbury.ac.nz>
Sent: 15 June 2020 07:23
To: python-ideas@python.org
Subject: [Python-ideas] Re: For quicker execution, don't refcount objects that
can't be deleted
On 15/06/20 5:11 pm, Steve Barnes wrote:
> Of course if we had a NaN value for integers, int('NaN'), then we could just
> set the initial count to it and since NaN - anything = NaN all would be
> golden.
Or we could use floating-point reference counts...
--
Greg
[Steve Barnes]
I thought of floating-point reference counts but:
a) 65535.0 -= 1 is slower than 65535 =- 1 (7.6% on my system quite a bit worse
on some embedded systems).
b) There comes a point in floats, (for large values of x), where x - 1 == x
(about 10**15 which for some scientific & big data calculations is not that
big) but unless reference counting uses python integers, rather than C, this
will not be an issue.
c) of course I like the concept of integer nan, inf, etc. 😊
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