On 12/02/2017 08:47 AM, Milton Vandersloot wrote:
functions_test.cxx:43:Assertion
Test name: ArrayFunctionsTest::testArrayFormulasFODS
double equality assertion failed
- Expected: 1
- Actual : 0
- Delta : 1e-14
The issue seems to be (again) floating point precision. Indeed, I've compiled
LibreOffice with FMA (fused multiply-add) instructions, if I disable them, i.e.
passing -ffp-contract=off to GCC, then the tests succeed. Note that FMA has
slightly different floating point precision than ordinary plus and mult [0, 1].
What is ultimately missing, I think, is a spec what the acceptable
results of calculations in Calc are, and tests written so that they
check whether or not the calculated results are in the acceptable ranges.
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