[postgis-devel] Memory alignment issues
schabi at logix-tt.com
Wed Nov 16 04:58:07 PST 2005
strk at refractions.net wrote:
>>>the third is a NOTICE message that isn't in the expected output.
>>> > NOTICE: Self-intersection
>>Hmm, does this and the slight geometry changes point to a possible problem?
> The notice is expected.
> The slight geometry change *might* be a problem in GEOS, but it
> is not easy to tell, I'm having similar mismatches between GEOS
> and JTS as well.
This might be because of different floating point accuracies, AFAIR the
C++ standard does not define anything about them, while the Java
standard has rather exact definitions wr/t floating point semantics.
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