Bug 105174 - IsLeapYear function gives erratic results.
Summary: IsLeapYear function gives erratic results.
Status: RESOLVED INSUFFICIENTDATA
Alias: None
Product: LibreOffice
Classification: Unclassified
Component: Calc (show other bugs)
Version:
(earliest affected)
4.4.3.2 release
Hardware: x86-64 (AMD64) Linux (All)
: medium minor
Assignee: Not Assigned
URL:
Whiteboard:
Keywords:
Depends on:
Blocks: Calc-Function
  Show dependency treegraph
 
Reported: 2017-01-07 14:48 UTC by Louie
Modified: 2018-03-02 10:06 UTC (History)
4 users (show)

See Also:
Crash report or crash signature:


Attachments
Known correct determinations of leap years vs isleapyear() function (239.20 KB, application/pdf)
2017-01-11 03:09 UTC, Louie
Details

Note You need to log in before you can comment on or make changes to this bug.
Description Louie 2017-01-07 14:48:54 UTC
Testing confirms many leap years return 0, "not leap"; some non-leap years return 1, "are leap", some return correct results. Same results in version 5.1.4.2 build ID 1:5.1.4-0ubunto1 and version 4.4.3.2 Build ID: 40m0(Build:2)

Range years tested 0 - 3000.
Comment 1 Regina Henschel 2017-01-07 15:33:31 UTC
Please be more specific, which cases give a wrong result and why you think, that the result is wrong.
Comment 2 Louie 2017-01-11 03:09:39 UTC
Created attachment 130310 [details]
Known correct determinations of leap years vs isleapyear() function

Sequence of 3001 years tested in 4 known correct methods of determining leap year are used as arguments to isleapyear() function resulting in many false positives and many missed leap years.
Comment 3 GerardF 2017-01-11 10:35:31 UTC
A calc sheet would had been more usefull than a pdf.
We can't see how you are trying to use this function.

ISLEAPYEAR need a true date as argument, see the help for a correct use of the function :
https://help.libreoffice.org/Calc/Add-in_Functions#ISLEAPYEAR
Comment 4 Louie 2017-01-13 02:18:02 UTC
What is needed?
Comment 5 Xisco Faulí 2017-01-13 12:03:58 UTC
(In reply to Louie from comment #4)
> What is needed?

As said in comment 3, could you please attach a calc sheet ?
Comment 6 QA Administrators 2018-01-29 10:27:57 UTC Comment hidden (obsolete)
Comment 7 QA Administrators 2018-03-02 10:06:20 UTC
Dear Bug Submitter,

Please read this message in its entirety before proceeding.

Your bug report is being closed as INSUFFICIENTDATA due to inactivity and
a lack of information which is needed in order to accurately
reproduce and confirm the problem. We encourage you to retest
your bug against the latest release. If the issue is still
present in the latest stable release, we need the following
information (please ignore any that you've already provided):

a) Provide details of your system including your operating
   system and the latest version of LibreOffice that you have
   confirmed the bug to be present

b) Provide easy to reproduce steps – the simpler the better

c) Provide any test case(s) which will help us confirm the problem

d) Provide screenshots of the problem if you think it might help

e) Read all comments and provide any requested information

Once all of this is done, please set the bug back to UNCONFIRMED
and we will attempt to reproduce the issue. Please do not:

a) respond via email 

b) update the version field in the bug or any of the other details
   on the top section of our bug tracker

Warm Regards,
QA Team

MassPing-NeedInfo-20180302