Compares this NullableDouble structure to a specified object and returns an indication of their relative values.
A signed number indicating the relative values of the instance and value.
|A negative integer||
This instance is less than value|
-or-This instance is not a number (NaN) and value is a number.
This instance is equal to value|
-or-This instance and value are both NaN, PositiveInfinity or NegativeInfinity.
|A positive integer||
This instance is greater than value|
-or-this instance is a number and value is not a number (NaN)
-or-value is a null reference (Nothing in Visual Basic) or Null.
This behavior follow CLR specifications while Operator== follows different IEEE 754 specs.