Re: [xml] XPath fix

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

From: "Bjorn Reese" <breese mail1 stofanet dk>
> >   I have no idea how to distinguish -0 from +0 at the C level, someone
has
> > an idea ?
>
> This is a bit (pun intended) difficult as -0 equals +0. The best
> solution may be to examine the sign bit directly if IEEE 754 is used
> (trio_nan.c can give you an idea about how this can be done -- in
> fact, it may be a good candidate function for trio_nan).

No probs. Something else to play with...
Presumably, also functions to set the sign explicitly (i.e., so I can set a
value to -0)?

As an aside, as you seem to have a good understanding of floating point
numbers, could you confirm that both ceiling(-0.1) and round(-0.1) should
return -0 and not +0?

Thanks,
Richard


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