Does C# have an Unsigned Double?

Question

I need to use an unsigned double but it turns out C# does not provide such a type.

Does anyone know why?

Answer 1

There is no such thing as an unsigned double in any language or system that I have ever heard of.

I need to give the ability to pass a variable that can be a fraction and must be positive. I wanted to use it in my Function signature to enforce it.

If you want to enforce a constraint that the parameter is positive, then you need to do that with a runtime check.