https://bugs.documentfoundation.org/show_bug.cgi?id=145570
Bug ID: 145570
Summary: ReDim spills out of scope
Product: LibreOffice
Version: 7.2.2.2 release
Hardware: x86-64 (AMD64)
OS: Linux (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: Calc
Assignee: [email protected]
Reporter: [email protected]
If you pass a Variant holding an array to a Function normally you may access
that array by its parameter name, as expected, regardless of array dimension
count. However, if you ReDim that parameter name with different dimension count
even in an excluded code branch, BEFORE attempting to access the array, the
access to the array under the passed dimension count will not compile.
The example below will not compile.
Sub StartBug()
Dim A(1 To 2, 1 To 2)
FuncBug(A)
End Sub
Function FuncBug(A As Variant)
If False Then
ReDim A(1 To 3)
Else
A(1,1) = 42
End If
End Function
This next example below will compile.
Sub StartBug()
Dim A(1 To 2, 1 To 2)
FuncBug(A)
End Sub
Function FuncBug(A As Variant)
If True Then
A(1,1) = 42
Else
ReDim A(1 To 3)
End If
End Function
Simply put, the compiler seems--I mean seems, not is--naive when protecting
against dimension count errors.
There would seem to be a heartier workaround than ordering of the branches by
Dimming and ReDimming an array locally to FuncBug then assigning that back to A
before exit, but this bug might relate to Bug 133811 and seems worth
consideration.
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