https://bz.apache.org/bugzilla/show_bug.cgi?id=62839
Bug ID: 62839
Summary: MathX.floor for negative n
Product: POI
Version: 4.0.0-FINAL
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P2
Component: SS Common
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Behavior in LibreOffice / Excel:
The result of function call FLOOR.XCL(-123;10) in LibreOffice 6.1.2.1 is -130.
The result in Excel Office 365 is also -130.
The result in POI 4.0.0 via cell.getNumericCellValue() is -130.0.
Problem:
The result of new DataFormatter().formatCellValue(cell, formulaEvaluator) is
#NUM!.
Expected result:
I suppose that the result in POI also should be -130.
Idea for improvement:
Remove the condition (n<0 && s>0) in the if-statement in
org.apache.poi.ss.formula.functions.MathX.floor(double, double)
And I suggest that the condition (s==0 && n!=0) in
org.apache.poi.ss.formula.functions.MathX.floor(double, double) could be
removed also. Excel returns 0 for floor(0;10) and LibreOffice also returns 0.
I guess that org.apache.poi.ss.formula.functions.MathX.ceiling(double, double)
has already been changed this way, because the docs tell about negative n, but
the if-statement does not check that.
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