Re: [PHP] Round

Some information from Wikipedia: http://en.wikipedia.org/wiki/Negative_zero.
Says in math a negative zero doesn't exist, in computing it does. Strange
thing is that PHP4 and 5 until at least 5.1.6 (see Jim Lucas) round() gives
a float(0) and then 5.2.3 gives float(-0). I'll report a bug.

""Richard Lynch"" <ceo@xxxxxxxxx> wrote in message
news:51163.98.193.37.55.1188412949.squirrel@xxxxxxxxxxxxxxxx
On Wed, August 29, 2007 11:38 am, Zoltán Németh wrote:
2007. 08. 29, szerda keltezéssel 09.29-kor Jim Lucas ezt írta:
Daniel Brown wrote:
On 8/29/07, Richard Heyes <richardh@xxxxxxxxxxx> wrote:
Koen van den Boogaart wrote:
No, I want it to go to float(0), so minus the minus. "-0"
doesn't exist in
math, as far as I know. Probably a precision thing.

I missed the start of this thread...

Technically, -0 exists and is a tautology to +0.

That said, PHP should not be outputting -0 for a round() operation,
nor abs() for that matter.

Check http://bugs.php.net with your PHP version for a similar problem.

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