Public bug reported:
Binary package hint: openoffice.org
ReDim (and Dim) throw a run-time error if UpperBound = (LowerBound-1).
For example
Dim foo(0 to 9)
...
ReDim foo(0 to -1) 'causes error
This should not be an error, but should make the array contain zero elements.
Note that arrays can be initially declared as empty with
Dim foo()
which sets UBound to -1
It -is- possible to say
ReDim foo()
to set UBound to -1, but that form does not allow easy use in algorithms which
compute array bounds at run-time and may validly want to get an empty array.
For example
sub RemoveLastElements(ary(), n)
ReDim Preserve ary(LBound(ary) to UBound(ary)-n)
end sub
... should work for for n up to and including the total number of elements, but
instead you currently have to code it like this:
sub RemoveLastElements(ary(), n)
if UBound(ary)-LBound(ary) > n then
ReDim Preserve ary(LBound(ary) to UBound(ary)-n)
else
ReDim ary()
end if
end sub
ProblemType: Bug
Architecture: amd64
Date: Wed Nov 4 14:25:11 2009
DistroRelease: Ubuntu 9.10
ExecutablePath: /usr/lib/openoffice/program/soffice.bin
Package: openoffice.org-core 1:3.1.1-5ubuntu1 [modified:
var/lib/openoffice/basis3.1/program/services.rdb]
ProcEnviron:
PATH=(custom, user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-14.48-generic
SourcePackage: openoffice.org
Uname: Linux 2.6.31-14-generic x86_64
** Affects: openoffice.org (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug
--
ReDim to empty does not work
https://bugs.launchpad.net/bugs/474844
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