https://bugs.documentfoundation.org/show_bug.cgi?id=166673
Bug ID: 166673
Summary: BASIC: Calling Space(-1) succeeds in release version
(even in VBA support mode), crashes in debug version
Product: LibreOffice
Version: unspecified
Hardware: All
OS: All
Status: UNCONFIRMED
Keywords: difficultyBeginner, easyHack, skillCpp
Severity: normal
Priority: medium
Component: BASIC
Assignee: [email protected]
Reporter: [email protected]
This Basic code succeeds in release version:
Space(-1)
In release version, this aborts because of failed assertion.
1. In VBA, this code gives Invalid Procedure Call run-time error (5).
We need to do the same in VBASupport mode.
2. We can't do that in non-VBA mode, because there is existing code relying on
current behavior. We need to sanitize the passed value instead, so that it
reaches the internals, where the "non-negative" preconditions must be met, in a
valid state.
Code pointer: SbRtl_Space in basic/source/runtime/methods.cxx.
The patch must contain unit tests both for non-VBA, and VBA support cases.
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