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nico18n

Array: is this a bug?

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nico18n

i am wrong.

sorry

Edited by nico18n

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hawky358

_Arrayadd(), enlarges the array

This is the internals of _arrayadd()

Func _ArrayAdd(ByRef $avArray, $vValue)
    If Not IsArray($avArray) Then Return SetError(1, 0, -1)
    If UBound($avArray, 0) <> 1 Then Return SetError(2, 0, -1)

    Local $iUBound = UBound($avArray)
    ReDim $avArray[$iUBound + 1]
    $avArray[$iUBound] = $vValue
    Return $iUBound
EndFunc   ;==>_ArrayAdd

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Melba23

nico18n,

No it is not a bug. :)

In the first case, you declare the array with 10 elements ([0]-[9]) and use _ArrayAdd to add element [10]. The _ArrayAdd command uses ReDim to resize the array to have 11 elements ([0]-[10]) - so you get element [10].

In the second case, you also declare the array with 10 elements, but try to assign element [10] without using ReDim. So the array still has only 10 elements and you are trying to declare the eleventh element. And surprise, surprise it fails!

Clear? Please ask if not. :idea:

M23


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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