Initial value of globals

How do unassigned globals work!?

Some times, it seems that the initial value is what I expect it to be (null,0,.0, etc), some times checking the value of an unassigned variable causes scripts to be interrupted. How to treat initial values? Assign all arrays from 0 to MAX_SIZE with null or 0 ?

Depends on the handletype.

Constant integers are 0 by default, constant boolean is false by default and constant handles are null by default.

Well, what if it ain't constant?


Which value will be sent to the function? Will the script halt? What's the best way to handle this?

Doesn't matter whether they are constant or not.
Aslong as they are not initialized, they are
Integer = 0
Boolean = false
Handle = null

So yours would sent a null value to the function

Uninitialized variables crash the thread when used.
Uninitialized arrays work the same as 0/0.0/false/null.