[PATCH 1/2]vbscript: Implemented builtin function CInt(try 2)

[Vincent Povirk]

The man page for modf claims it produces an exact fractional part:
http://manpages.ubuntu.com/manpages/quantal/en/man3/modf.3.html

It's possible for modf to do this because the fractional part of a
floating point number cannot require more precision than the original
value.

So I think you've essentially just rewritten modf. My understanding is
that floating point equality comparisons are exact, except in weird
cases like NaN.