[Libreoffice-bugs] [Bug 137453] New: calc: ui: display of cells formatted as fraction partly broken

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=137453

            Bug ID: 137453
           Summary: calc: ui: display of cells formatted as fraction
                    partly broken
           Product: LibreOffice
           Version: 3.5.1 release
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: normal
          Priority: medium
         Component: Calc
          Assignee: libreoffice-bugs at lists.freedesktop.org
          Reporter: newbie-02 at gmx.de

Description:
keying '=3333333333/100' in a cell and formatting it as a fraction with the
format-string '?/???' results in 

'-961633963/100'

see discussion in
https://ask.libreoffice.org/en/question/270785/calc-funny-result-with-cell-formatted-as-fraction/?answer=270852#post-id-270852 

assumed a bug resulting from integer overflow of the enumerator, as fails start
at 2147483648 for it, 2<sup>31</sup> 

calc ver 3.5.1.2 holds til somewhat around '=1,5623*(2^38)/100'
(429441754020/100) but e.g. displays 4294960000 for '=429496000000/100' despite
formatted as fraction with format code '?/100', thus also 'not clean', setting
ver. to oldest, setting 'regression', 

i've not yet checked if calculating works well for all cases, but have seen
some which did, 

Steps to Reproduce:
1. see above description, 
2. replay, 
3. observe results, 

Actual Results:
-961633963/100

Expected Results:
3333333333/100


Reproducible: Always


User Profile Reset: No



Additional Info:
different versions, see description, as of yet tested only with win, recheck
with lin appreciated,

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