[Bug 90419] Accuracy of calculation in Fill

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=90419

Eike Rathke <erack at redhat.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
                 CC|                            |erack at redhat.com,
                   |                            |libreoffice at lists.freedeskt
                   |                            |op.org
            Version|4.3.1.2 release             |Inherited From OOo
            Summary|Accuracy of calculation     |Accuracy of calculation in
                   |                            |Fill
     Ever confirmed|0                           |1
         Whiteboard|                            |EasyHack
                   |                            |DifficultyInteresting
                   |                            |SkillCpp
                 OS|Windows (All)               |All

--- Comment #1 from Eike Rathke <erack at redhat.com> ---
While generally all floating point numbers that are not exactly representable
in an IEEE 754 double lose precision, this specific case of filling a series of
numbers could be improved by using multiplication instead of incrementing
(adding delta) values.

Actually this shouldn't be too hard to solve, I'm creating an EasyHack of this.
Code pointer is sc/source/core/data/table4.cxx ScTable::Fill() and subroutines.

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