Undocumented behaviour of arrays

[rindeal]

reffering to a part of array that is being declared

$avArray[2]=["foo",$avArray[0]]

[TicketCleanup]

Automatic ticket cleanup.

[jchd18]

Sidenote: works as expected only on when referring to elements whose assignment have already been parsed, i.e. doesn't work as expected on elements placed after the reference.

#include <array.au3>
Local $avArray1 = ["foo", $avArray1[0], "bar"]
_ArrayDisplay($avArray1, "As expected")
Local $avArray2 = ["foo", $avArray2[2], "bar"]
_ArrayDisplay($avArray2, "Pitfall")

[mlipok]

sidenote:
and you have to use a directive #forcedef to prevent errors displayed by AU3Check

#include <array.au3>
#forcedef $avArray1
Local $avArray1 = ["foo", $avArray1[0], "bar"]
_ArrayDisplay($avArray1, "As expected")
#forcedef $avArray2
Local $avArray2 = ["foo", $avArray2[2], "bar"]
_ArrayDisplay($avArray2, "Pitfall")

[Melba23]

Please provide an example of where this declaration "quirk" would be useful. At present I am more inclined to get it removed than document it and confuse everyone.

M23

[jchd18]

I partly agree, yet it can be handy in some cases to avoid duplication of literals but I don't know whether it's worth documenting.

#include <array.au3>
; Array of URLs: col0=site name, col1=from extranet, col2=from intranet, col3=login required, col4=user group
#forcedef $aURLs
Local $aURLs[4][5] = [ _
	["site AAA", "first very long URL for extranet access", $aURLs[0][1], $aURLs[0][1] <> $aURLs[0][2], $aURLs[0][3] ? "restricted" : "all"], _
	["site BBB", "second very long URL for extranet access", "exceptional actual intranet access", $aURLs[1][1] <> $aURLs[1][2], "webadmins"], _
	["site CCC", "third very long URL for extranet access", $aURLs[2][1], $aURLs[2][1] <> $aURLs[2][2], $aURLs[2][3] ? "restricted" : "all"], _
	["site DDD", "last very long URL for extranet access", $aURLs[3][1], $aURLs[3][1] <> $aURLs[3][2], $aURLs[3][3] ? "restricted" : "all"] _
]
_ArrayDisplay($aURLs, "Devil's advocate example")

[guinness]

It's not worth documenting, as if it were Jon would have does so when the array datatype was included as part of AutoIt. Don't get me wrong, I have used it too as a neat workaround but other languages such as C# don't allow this sort of behaviour.