Getting an error with arrays...

[Skitty]

"Array variable has incorrect number of subscripts or subscript dimension range exceeded."

What are the default subscript limits?

What are sub scripts?

I can't post the code since its 3018 lines, too long to post here and only works on my pc so it isn't relevant anyway...

But I keep getting this damn error after adding some more items to an array..

[water]

Usually it's a problem with your index exceeding the number of elements in the array.

Let's say you have an array $aArray[10]. As the elements start with 0, you can access them with an index from 0 to 9. If you try to access element 10 you get the described error.

Edited February 24, 2011 by water

[BrewManNH]

I suggest you read this before you attempt to use arrays again. You need to find out how they work, and you obviously missed that part of the tutorials.

[Skitty]

Usually it's a problem with your index exceeding the number of elements in the array.

Let's say you have an array $aArray[10]. As the elements start with 0, you can access them with an index from 0 to 9. If you try to access element 10 you get the described error.

Thanks, thats exactly whats wrong.

It's a little counter var thats interfering with the array during a Do - Until func...

[hohenheim]

Thanks, thats exactly whats wrong.

It's a little counter var thats interfering with the array during a Do - Until func...

Is there a way to catch this error, tried (ObjEvent("AutoIt.Error","ErrorFunc")) it didn't work.

[hannes08]

As for the limitations of arrays in AutoIt:

"You can use up to 64 dimensions in an Array. The total number of entries cannot be greater than 2^24 (16 777 216)."

[hohenheim]

When such error occurs, is it possible to catch it

[iamtheky]

#include <array.au3>

Dim $aArray[5]
$aArray[0] = 1
$aArray[1] = 2
$aArray[2] = 3
$aArray[3] = 4
$aArray[4] = 5

for $i = 0 to 5

    If $i > ubound ($aArray) - 1 Then
        msgbox (0, '' , "number of array elements exceeded")
        exitloop
    EndIf

    msgbox (0, '' , $aArray[$i])

    Next

[hannes08]

#include <array.au3>

Dim $aArray[5]
$aArray[0] = 1
$aArray[1] = 2
$aArray[2] = 3
$aArray[3] = 4
$aArray[4] = 5

for $i = 0 to 5

    If $i > ubound ($aArray) - 1 Then
        msgbox (0, '' , "number of array elements exceeded")
        exitloop
    EndIf

    msgbox (0, '' , $aArray[$i])

    Next

I thought about something like that but honestly I was too lazy to write.

And maybe it isn't exactly what "heidenheim" wants... I'd guess he's looking for a global function to catch those errors.

[hohenheim]

I thought about something like that but honestly I was too lazy to write.

And maybe it isn't exactly what "heidenheim" wants... I'd guess he's looking for a global function to catch those errors.

Exact, i'm not looking for a way to avoid the error, but to catch it when occurs. I just want to exit the program when it happens, preventing the annoying message box: (Error: Array variable...)

[iamtheky]

and that would be different from commenting out the msgbox and leaving just the exitloop?

[hohenheim]

and that would be different from commenting out the msgbox and leaving just the exitloop?

By default Autoit generates the message box when this error occurs,There's no need to use the code posted by Hannes123.

[iamtheky]

Seriously, yer serious?

#include <array.au3>

Dim $aArray[5]
$aArray[0] = 1
$aArray[1] = 2
$aArray[2] = 3
$aArray[3] = 4
$aArray[4] = 5

for $i = 0 to 5

    If $i > ubound ($aArray) - 1 Then
       ; msgbox (0, '' , "number of array elements exceeded")
        exitloop
    EndIf

    msgbox (0, '' , $aArray[$i])

    Next

[Tvern]

I don't think that's the messagebox he means, but rather the one triggered by AutoIt's default error handler. I'm not sure there is much you can do about that one though.

[iamtheky]

maybe im dense? but I dont get that message when i have the If statement there.

[Tvern]

Exact, i'm not looking for a way to avoid the error, but to catch it when occurs.

As in "default behavior without the added check for each array operation in the script".

Imo it's a pretty horrible idea, because you will end up with arrays that do not contain the data you expect them to, but the resulting crash will often be in a completely different part of the script, making debugging an absolute pain.

(Unless you where to keep a log of these errors and can reliably get that log from the clients PC's... etc. Personally I'm not a fan.)

In any case I think that's what he's asking for and afaik it's not possible to catch anything but com errors and handle the return/@error/@Extended values for functions.

[BrewManNH]

Exact, i'm not looking for a way to avoid the error, but to catch it when occurs. I just want to exit the program when it happens, preventing the annoying message box: (Error: Array variable...)

The whole point is to avoid the errors in the first place. If you're looking to make it so that the script never crashes then you're either going to have to code it correctly, or only run it in situations that you're sure will never cause it to crash. Bugs happen, but with proper testing you can eliminate most of them. Sometimes you have to try to be smarter than the users of the scripts, or let others test your scripts before you release them so they can help find situations you didn't think about and find ways to code around them.

[hohenheim]

Thanks everyone for the advices, the thing is the script runs 24h a day and according to murphy's law no matter how sophisticated the code, if there's a tiny little chance that it crashes, it will crash.

I'll try to handle all the cases and make a log

[water]

If you need your script to be up and running 24 hrs you could write a second script to check every x seconds if the main script is still running. If not restart it or send an email or do whatever you want ...

[AdmiralAlkex]

@hohenheim

You can use /ErrorStdOut, see helpfile.