[Libreoffice-bugs] [Bug 126481] An option for Rounding mode in ScInterpreter::ScRound

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=126481

Eike Rathke <erack at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |WONTFIX

--- Comment #4 from Eike Rathke <erack at redhat.com> ---
Problem is the actual underlying floating point value of =(105 * 1.75 + 50) /
1.1 is 212.49999999999997 and only for display rounded to 212.5 as it is within
the accuracy margin, you can check with =RAWSUBTRACT(212.5;(105 * 1.75 + 50) /
1.1) that produces 2.8421709430404E-14

There's not much we can do here (except always displaying the "real" floating
point value and get whining users). For 0 decimals (round to integer) ROUND()
effectively calls std::round() to avoid bad "correction" resulting in wrong
values, see bug 96821.

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