[xml] Xpath fixes

["Richard Jinks" <cyberthymia yahoo co uk>]

Hi
Done:
Fixed the NaN comparisons - VC++6 decided to make up its own rules for
comparing NaNs with each other, so I put in special cases to test them by
hand (and to think that I once argued that doing all this by hand was a bad
idea...)

Got a new set of XPath maths test / results files to cover all the cases
I've been playing with.

Put in Bjorn's replacement function to get the sign of the number.

Remembered to remove all debug bits of code / dodgy comments.

Still to do:
XPath Error messages
Allow XPath expressions without needing an XML tree

The catch:
I can't seem to get into CVS to generate a new diff file.
When I try and do anything with CVS, I get the following error message
cvs: [update aborted]: unrecognized auth response from anoncvs.gnome.org:
cvs pserver: /cvs/gnome/CVSROOT/config: unrecognized keyword 'LogHistory'

This worked fine yesterday, so has something changed, or am I doing
something wrong?

Richard


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