Number Extractor?

Question
1 
 Hello,

Is there a number extractor somewhere in the standard lib?

I need an extractor that matches an object of numeric type (Float, Double, Int, etc) and gives me the approximate value as Double.

Yeah, I could roll my own.

 Best, Oliver
2

I don’t think there’s an extractor. Does case n: Number => n.doubleValue work for you?

3

Hello,

Thanks for the idea. I’m thinking hard whether that is guaranteed to
work. I suppose if a reference of type Any is being matched and it is a
number, it must be boxed and then it is a subtype of Number. Or could some
compiler optimization break it?

It would be so nice if Scala had a Number type that is a real supertype
of its numeric value types.

 Best, Oliver