Discern deafult values from assigned values of Integer, Long, Double, String

Hello Dear Excel Help

I'm trying wrap my mind around types in VBA. Is there definitive guide or table?
For each type I need to discern uninitialized state (no value supplied that means default value) from state when default value is explicitly supplied to variable.
That means:

1a) Dim int As Integer
vs
1b) Dim int As Integer
int=0

Another problem is with arrays for each type I need to discern states:
2a) Dim int() As Integer
vs
2b) Dim int() As Integer
Redim int(1 To 10)
2c) Dim int() As Integer
Redim int(1 To 10)
int(1)=0

In 2c) I need to discer states int(1) vs int(2).

I know for Variant array I can use IsEmpty and C. Pearson gives IsArrayEmpty function which can check whether array of all types was dimensioned or not.

Originally Posted by shg

There's no way to discern whether the default value of a simple scalar variable is there by default or assignment.

Ok, I take it. You saved me lot of pain. I don't have to try it anymore. I will use Variant type when needed.

Should I close this thread as solved or should I wait some time before closing it?