[bug #47422] [NSCalendarDate descriptionWithCalendarFormat] hangs with some dates

[Sam Thompson]

URL:
  <http://savannah.gnu.org/bugs/?47422>

                 Summary: [NSCalendarDate descriptionWithCalendarFormat] hangs
with some dates
                 Project: GNUstep
            Submitted by: sthompso
            Submitted on: Tue 15 Mar 2016 04:35:59 PM GMT
                Category: Base/Foundation
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:


Trying to format some representations of dates using [NSCalendarDate
descriptionWithCalendarFormat], causes a hang within GNUStep library.


Please find attached sample application source-code which demonstrates the
behavior.


The first date succeeds, but the second results in a hang.

Output:
$ obj/DateFormatTest.exe
daysSince1970: 8640000000. secondsSinceReference: 746495021692800.
Converted to 07-06-139044
daysSince1970: 2147483651. secondsSinceReference: 185541609139200.


Have seen the hang is somewhere within:
absoluteGregorianDay () / gregorianDateFromAbsolute () from
gnustep-base-1_24.dll.   These functions are used within the
descriptionWithCalendarFormat implementation, within a few while-loops.



While the "problem date" in the test may seem overboard, I still wouldn't
expect the hanging behavior.



GNUStep version: 1.24.6.
Platform: Windows.
GCC: 4.7.2.




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File Attachments:


-------------------------------------------------------
Date: Tue 15 Mar 2016 04:35:59 PM GMT  Name: DateFormatTest.m  Size: 1kB   By:
sthompso
Sample source-code demonstrating the behavior is attached.
<http://savannah.gnu.org/bugs/download.php?file_id=36654>

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