antchfx / xpath / 29692471652

80%

master: 82%

Pull #128

github

fix: round() and mod follow the XPath 1.0 numeric spec

round() rounded halves away from zero and dropped the non-finite cases via the
int cast (REC 4.4); it now returns a number like ceiling()/floor(), so halves
round toward +Infinity and NaN/+-Infinity pass through. Since it no longer needs
the go1.10-only math.Round it moves next to roundFunc.

mod truncated its operands to int and panicked on a zero divisor; math.Mod is
the truncating remainder the spec requires (REC 3.5), with NaN for mod by zero.

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