Hi Matt:
On Sat, Mar 14, 2009 at 09:30:42AM -0500, Matt Wilmas wrote:
>
> But of course with
> doubles, precision has been lost long before 2^63 anyway, as far as
> increments of 1 (it's 1024 at 2^63).
I just ran into these issues in PHP 5.2.8 on 64 bit Linux while running
examples I'm using to improve our documentation surrounding bitwise
operators, bindec() and decbin().
The integer float conversions start failing above 2^53, meaning
9007199254740993 is the first integer that doesn't work. As you noted,
ints divisible by 1024 are fine. I can provide the test script to anyone
who needs it.
A bash script I put together makes it look like things work correctly in
the shell. So it seems this is a PHP thing, not a Linux thing.
Am I correct in believing your changes will take care of these issues?
It seems you're looking to patch 5.3 and HEAD. Are there thoughts of
applying this to 5.2?
Thanks,
--Dan
Note: The guy who put the box together says everything on it is built
against 64 bit libraries.
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