How could I test whether the input parameter is uninitialized

[coder777]

@JLBorges

What is your problem?

If the functionality of optional meets your requirements fine, use it, if not don't.

a programmer can specify that a value that may or may not be present.

Yes.

As I see it, the futile attempt to use optional to achieve this purpose is asinine.

It seems nobody wants it except for probably you.