Vector has to be Local on assignment line else syntax error

[c.haslam]

This works in a long script:

Local $ar,$vec
    For $fnam in $udfFnamsVec
        $vec = GetFnamsInaMgmt_Hhc('udf',$gudfLvlFnamAr,$fnam)
        For $i = 0 to UBound($vec)-1
            Local $tvec = [$vec[$i],$fnam]
            AppendRowToArray($ar,$tvec)
        Next
    Next

but this gives a syntax error:

Local $ar,$vec,$tvec
    For $fnam in $udfFnamsVec
        $vec = GetFnamsInaMgmt_Hhc('udf',$gudfLvlFnamAr,$fnam)
        For $i = 0 to UBound($vec)-1
            $tvec = [$vec[$i],$fnam]
            AppendRowToArray($ar,$tvec)
        Next
    Next

Why?

Edited July 12, 2015 by c.haslam

[Jos]

You could have summarized it that this works:

Local  $tvec = [$vec[$i],$fnam]

And this gives an Error:

$tvec = [$vec[$i],$fnam]

You are trying to define an Array and need to use Dim/Global/Local

Jos

 

[c.haslam]

OK. But consider $vec:

• On the first line of my code, it is declared (as a scalar?)
• On the third line, AutoIt changes it to being a vector, because the function returns a vector.

Am I correct?

Please also consider $ar. A 2D array had been assigned to it in a previous line of the code. Despite declaring it (without a value) on line 1 of the code above, it picked up the previous value, assigned earlier in the function. So re-declaring a variable as Local with no initial value does nothing.

I solved the problem by changing the first line to

Local $ar='',$vec

Am I correct?

I looked in the Help but did not find anything  there to help.

BTW I see that Language Reference > Variables still shows Map, despite Jon having withdrawn this feature. Perhaps it should either be removed or mentioned as a future feature.

Further, as I read this help topic, I see Using empty [ ] declares a Map but an example of an array is Local $vVar[] = [1, 2, 3]. Is Using empty [] without an initializer declares a Map intended?

I am using v. 3.3.14.0

Edited July 12, 2015 by c.haslam

[Melba23]

c.haslam,

Every time you declare an array (whether empty or filled) you must use a scoping keyword - that is probably the only reason that we keep Dim, so that you can re-declare an array in a UDF without worrying whether it was Local or Global in scope in the calling script.

The Map stuff on that page should have been removed - but as it will still be in the next Beta I am not going to lose any sleep over its inclusion.

M23

[c.haslam]

Thank you