is_infinity

Determines if the given double is a negative or positive infinity

Example: Check whether a double represents infinity:

public static int main (string[] args) {
	// Output: ``inf -- 1 -- false``
	double val = double.INFINITY;
	print ("%f -- %s -- %s\n", val, val.is_infinity ().to_string (), val.is_finite ().to_string ());

	// Output: ``nan -- 0 -- false``
	val = double.NAN;
	print ("%f -- %s -- %s\n", val, val.is_infinity ().to_string (), val.is_finite ().to_string ());

	// Output: ``0.300000 -- 0 -- true``
	val = 0.3f;
	print ("%f -- %s -- %s\n", val, val.is_infinity ().to_string (), val.is_finite ().to_string ());

	return 0;
}

valac --pkg glib-2.0 double.is_infinity.vala