https://bugs.freedesktop.org/show_bug.cgi?id=36737
--- Comment #4 from Bob <bobbux...@gmail.com> --- I was about to open a very similar bug report and can provide a simple test case to demonstrate the problem still occurs of LO 4.3.0.3 VBA allows an optional parameter to be defined as - optional str as string = "abc" - the variable is not initialized to "abc" in LO Alternatively if no default is provided - optional mstr as string mstr - should not be initialized and isMissing(mstr) should return True it actually returns false and mstr is a null string LO works correctly for data type Double and Variant, I have not tested other data types This error is particularly insidious when porting from Excel since no error is raised and differences in function execution may not be readily apparent. I used the following function to show the problem: function TestOpt(optional num as double =123, optional str as string = "abc", optional numv =456, optional strv = "def", optional miss as double, optional mstr as string) as string Dim printstr as string printstr = "num: >>" &num &"<< isMissing " & isMissing(num) printstr = printstr & "; str: >>" &str &"<< isMissing " & isMissing(str) printstr = printstr & "; numv: >>" &numv &"<< isMissing " & isMissing(numv) printstr = printstr & "; strv: >>" &strv &"<< isMissing " & isMissing(strv) rem print printstr printstr = printstr & "; miss: >>" &miss &"<< isMissing " & isMissing(miss) printstr = printstr & "; mstr: >>" &mstr &"<< isMissing " & isMissing(mstr) print printstr TestOpt = printstr end function Output is num: >>123<< isMissing False; str: >><< isMissing False; numv: >>456<< isMissing False; strv: >>def<< isMissing False; miss: >>Error ǀ<< isMissing True; mstr: >><< isMissing False str and mstr are handled incorrectly, Double and Variant formats are correct -- You are receiving this mail because: You are the assignee for the bug.
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