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SlowCoder74

_ArrayAdd issue

4 posts in this topic

Here's an issue I ran into with _ArrayAdd.  Maybe not problem so much, but something I thought needed a workaround ...

#include <Array.au3>

local $aMyArray[1]

_ArrayAdd($aMyArray,"blah")

Since you can't create an array with 0 elements in AutoIT, using _ArrayAdd in this fashion completely ignores the first element. 

I built my own version that does not, and I believe it conforms more with intended AutoIT array usage.

Func _ArrayAddValue(ByRef $aArray,$sValue = "")
    ;adds an element (redim) to 1D array, and assigns value to it
    ;if a non-array variable is provided, it will be converted (original data lost) to array, with value assigned to element [0]
    ;$aArray - array to add element and value to
    ;$sValue - value to assign to added element

    local $bIsNewArray = False
    if Not IsArray($aArray) Then ;create array
        Dim $aArray[1]
        $bIsNewArray = True
    EndIf

    if $bIsNewArray = False then ReDim $aArray[UBound($aArray) + 1]
    $aArray[UBound($aArray) - 1] = $sValue
EndFunc

New version of calling code would look like:

local $aMyArray

_ArrayAddValue($aMyArray,"blah")

Note that the newly initialized variable is NOT initially an array, which allows the _ArrayAddValue to add a value to the [0] element.

Thoughts?

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With the latest stable version of AutoIt (3.3.10.x) you can have empty arrays:

Local $aMyArray[0]

The Array UDF supports empty arrays in 3.3.10.x.

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My UDFs and Tutorials:

Spoiler

UDFs:
Active Directory (NEW 2017-04-18 - Version 1.4.8.0) - Download - General Help & Support - Example Scripts - Wiki
OutlookEX (NEW 2017-02-27 - Version 1.3.1.0) - Download - General Help & Support - Example Scripts - Wiki
ExcelChart (2015-04-01 - Version 0.4.0.0) - Download - General Help & Support - Example Scripts
Excel - Example Scripts - Wiki
Word - Wiki
PowerPoint (2015-06-06 - Version 0.0.5.0) - Download - General Help & Support

Tutorials:
ADO - Wiki

 

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SlowCoder74,

 

Since you can't create an array with 0 elements in AutoIT

Says who? :P

#include <Array.au3>
#include <MsgBoxConstants.au3>

; Start with 1 element and delete it
Global $aArray[1] = [0]
_ArrayDelete($aArray, 0)
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")
_ArrayAdd($aArray, "New Item")
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")

; Or just start with none in the first place
Global $aArray[0]
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")
_ArrayAdd($aArray, "New Item")
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")
M23
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Any of my own code posted anywhere on the forum is available for use by others without any restriction of any kind._______My UDFs:

Spoiler

ArrayMultiColSort ---- Sort arrays on multiple columns
ChooseFileFolder ---- Single and multiple selections from specified path treeview listing
Date_Time_Convert -- Easily convert date/time formats, including the language used
ExtMsgBox --------- A highly customisable replacement for MsgBox
GUIExtender -------- Extend and retract multiple sections within a GUI
GUIFrame ---------- Subdivide GUIs into many adjustable frames
GUIListViewEx ------- Insert, delete, move, drag, sort, edit and colour ListView items
GUITreeViewEx ------ Check/clear parent and child checkboxes in a TreeView
Marquee ----------- Scrolling tickertape GUIs
NoFocusLines ------- Remove the dotted focus lines from buttons, sliders, radios and checkboxes
Notify ------------- Small notifications on the edge of the display
Scrollbars ----------Automatically sized scrollbars with a single command
StringSize ---------- Automatically size controls to fit text
Toast -------------- Small GUIs which pop out of the notification area

 

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With the latest stable version of AutoIt (3.3.10.x) you can have empty arrays:

Local $aMyArray[0]

The Array UDF supports empty arrays in 3.3.10.x.

 

SlowCoder74,

 

Says who? :P

#include <Array.au3>
#include <MsgBoxConstants.au3>

; Start with 1 element and delete it
Global $aArray[1] = [0]
_ArrayDelete($aArray, 0)
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")
_ArrayAdd($aArray, "New Item")
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")

; Or just start with none in the first place
Global $aArray[0]
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")
_ArrayAdd($aArray, "New Item")
MsgBox($MB_SYSTEMMODAL, "Size", "Array has " & UBound($aArray) & " items")
M23

 

 

:thumbsup: Yay!  Yoohoo!  Alright!  Cheer! :thumbsup:

Forcing nonempty arrays has been one of the very few banes of my AutoIT experience!  Thank you for fixing that!

Downloading the newest release now ...

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