Message 233581 - Python tracker

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Author	vstinner
Recipients	ethan.furman, vstinner
Date	2015-01-07.16:42:15
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1420648935.99.0.141526308239.issue23185@psf.upfronthosting.co.za>
In-reply-to

Content
> Do we add a math.neginf, or somesuch, for float('-inf')? Or just use -math.inf? I would prefer to only add inf. It looks like float("-inf") and -float("inf") have exactly the same IEEE 754 representation (at least on my x86_64 CPU): >>> struct.pack("d", float("-inf")) == struct.pack("d", -float("inf")) True

>   Do we add a math.neginf, or somesuch, for float('-inf')?  Or just use -math.inf?

I would prefer to only add inf.

It looks like float("-inf") and -float("inf") have exactly the same IEEE 754 representation (at least on my x86_64 CPU):

>>> struct.pack("d", float("-inf")) == struct.pack("d", -float("inf"))
True

History
Date	User	Action	Args
2015-01-07 16:42:16	vstinner	set	recipients: + vstinner, ethan.furman
2015-01-07 16:42:15	vstinner	set	messageid: <1420648935.99.0.141526308239.issue23185@psf.upfronthosting.co.za>
2015-01-07 16:42:15	vstinner	link	issue23185 messages
2015-01-07 16:42:15	vstinner	create