Defining Null Arrays

[Fly By Night 4]

In all my years dabbling with AutoItScript, i've never figured this out.

How do you define a null array?

Is $clipQ[1] = [""] considered a null array? I've tried $clipQ = "" but when you try to do array operations on it, they seem to fail.

With the _ArrayPop function,

If the array has one element left, it will be set to "" after _ArrayPop() is used on it.

What is that setting the array too as you can't display the array using _ArrayDisplay anymore. Is is going back to setting the array as an empty string as when i try to do an _ArrayAdd after it's popped the last item, this doesn't work? How do you get around that?

Thanks for any info to clear this for me.

Edited August 26, 2011 by Fly By Night

[Melba23 2,805]

Fly By Night,

You cannot have a NULL array in AutoIt - you must have at least 1 element. So when you _ArrayPop the final element, you no longer have an array - just a normal (but empty) variable.

If you want to know more, I suggest reading this thread.

M23

[Fly By Night 4]

Fly By Night,

You cannot have a NULL array in AutoIt - you must have at least 1 element. So when you _ArrayPop the final element, you no longer have an array - just a normal (but empty) variable.

If you want to know more, I suggest reading this thread.

M23

Cheers. Now i know why i've never managed to figured out how to have an empty array...lol. Just never asked about it and made workarounds.

Just trying to make a queue and sometimes it will be empty. Will just have to have a dummy entry in to keep array alive i guess.

Thanks again.

Edited August 26, 2011 by Fly By Night

[ProgAndy 70]

Just trying to make a queue and sometimes it will be empty. Will just have to have a dummy entry in to keep array alive i guess.

Why? Just use IsArray($x) instead of something like IsArrayEmpty($x) and you can implement your empty array without problems

PS: To create a queue, I prefer a circular buffer if you can accept a limited quoue length.

[Fly By Night 4]

Cheers i just read the info at the thread pointed to by Melba23 so will go work on these techniques.