Pointer to Array

[EdDyreen]

Dim $Array[6] = [                        _
    '$File_SCRIPT_Internal',             _
    '$FileName_SCRIPT_Internal',         _
    '$FileExtension_SCRIPT_Internal',    _
    '$File_SCRIPT_External',             _
    '$FileName_SCRIPT_External',         _
    '$FileExtension_SCRIPT_External'     _
]

$NameofArray = 'Array'

_ArrayDisplay ( $NameofArray )
Exit

not working

tried eval ()

tried string ()

can I do it with a pointer ?

How does that work ?

[jvanegmond]

It works fine with eval:

#include <Array.au3>

Dim $Array[6] = [                        _
    '$File_SCRIPT_Internal',             _
    '$FileName_SCRIPT_Internal',         _
    '$FileExtension_SCRIPT_Internal',    _
    '$File_SCRIPT_External',             _
    '$FileName_SCRIPT_External',         _
    '$FileExtension_SCRIPT_External'     _
]

$NameofArray = Eval('Array')

_ArrayDisplay ( $NameofArray )
Exit

[Melba23]

EdDyreen,

As Manadar has shown, you need to get the Eval function out of the way first as _ArrayDisplay MUST have a Const ByRef parameter as the array name. You can see this from the error you get when you put the Eval inside the _ArrayDisplay:

ERROR: _ArrayDisplay() called with expression on Const ByRef-param(s)

So you have to do the Eval bit first.

M23

[EdDyreen]

EdDyreen,

As Manadar has shown, you need to get the Eval function out of the way first as _ArrayDisplay MUST have a Const ByRef parameter as the array name. You can see this from the error you get when you put the Eval inside the _ArrayDisplay:

ERROR: _ArrayDisplay() called with expression on Const ByRef-param(s)

So you have to do the Eval bit first.

M23

Thnx, stupid me, I was doing: _ArrayDisplay ( Eval( $NameofArray) )

but i get a different error:

Dim $Array[6] = [                        _
    '$File_SCRIPT_Internal',             _
    '$FileName_SCRIPT_Internal',         _
    '$FileExtension_SCRIPT_Internal',    _
    '$File_SCRIPT_External',             _
    '$FileName_SCRIPT_External',         _
    '$FileExtension_SCRIPT_External'     _
]

$NameofArray = 'Array'
_ArrayDisplay ( Eval( $NameofArray) )
Exit

F:\TST.au3 (205) : ==> Expected a variable in user function call.:

_ArrayDisplay ( Eval( $NameofArray) )

_ArrayDisplay ( ^ ERROR

Anyway it works now

[PsaltyDS]

There was a tweak to allow values returned from nested functions to be used ByRef in other functions. This works if you click Continue on the syntax check error:

#include <Array.au3>

Global $sString = "ABCDEF"
_ArrayDisplay(StringSplit($sString, ""))

However, in Beta 3.3.3.3 and below, this didn't work with Eval():

#include <Array.au3>

Global $sString = "ABCDEF"
Global $aArray = StringSplit($sString, "")
_ArrayDisplay(Eval("aArray"))

Update to the current 3.3.4.0 Prod version and the above script also works (again, after clicking Continue on a syntax error).

Getting rid of the syntax error report is an AU3Check.exe tweak, I think.

Edited January 19, 2010 by PsaltyDS

[Melba23]

PsaltyDS,

Another day - another little nugget of information.

Not sure I will ever use it, but thanks for letting us know!

M23

Edit: Speeling (or rather tpying!)

Edited January 19, 2010 by Melba23

[jchd]

@PsaltyDS: thanks for sharing.

I was completely unaware of the issue as I only save my source files in UTF-8 + BOM encoding, and Au3Check doesn't know how to cook UTF files.

Geez, if that breaks down in a future version, I'll have myriads of such nested calls to unroll.

@Devs: Is there any assurance that such nested calls will keep on working as per 3.3.4.0?

[MvGulik]

whatever Edited February 7, 2011 by MvGulik

[PsaltyDS]

#65

When I mentioned another tweak to AU3Check to Jos, he channeled his inner Elmer Fudd: "Shhhh! Be vewy quiet, I'm hunting pengwins! Huh-uh-uh-uh-uh-uh-uh-uh"

Edited January 20, 2010 by PsaltyDS

[Melba23]

PsaltyDS,

I never realised rakishly good-looking water fowl were so endangered!

M23

[MvGulik]

whatever Edited February 7, 2011 by MvGulik