http://bugzilla.novell.com/show_bug.cgi?id=582502
http://bugzilla.novell.com/show_bug.cgi?id=582502#c0 Summary: System.Linq.Enumerable.OrderByDescending is a not stable sort Classification: Mono Product: Mono: Class Libraries Version: 2.6.x Platform: All OS/Version: All Status: NEW Severity: Major Priority: P5 - None Component: Sys.Core AssignedTo: [email protected] ReportedBy: [email protected] QAContact: [email protected] Found By: --- Blocker: --- Created an attachment (id=344295) --> (http://bugzilla.novell.com/attachment.cgi?id=344295) Test case for reported bug User-Agent: Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 According to MSDN, System.Linq.Enumerable.OrderByDescending should be stable --- From http://msdn.microsoft.com/en-us/library/bb534855.aspx This method performs a stable sort; that is, if the keys of two elements are equal, the order of the elements is preserved. In contrast, an unstable sort does not preserve the order of elements that have the same key. In Mono 2.6.x (tested on Windows and Mac OS X), the sort is not stable. Reproducible: Always Steps to Reproduce: 1. Compile and run the attached test case. 2. 3. Actual Results: ws1048-snow:Downloads tom.philpot$ /opt/mono/bin/gmcs DevBug13300Test.cs ws1048-snow:Downloads tom.philpot$ /opt/mono/bin/mono DevBug13300Test.exe True - 9 True - 7 True - 5 True - 3 True - 1 False - 10 False - 8 False - 6 False - 4 False - 2 Expected Results: True - 1 True - 3 True - 5 True - 7 True - 9 False - 2 False - 4 False - 6 False - 8 False - 10 -- Configure bugmail: http://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the QA contact for the bug. _______________________________________________ mono-bugs maillist - [email protected] http://lists.ximian.com/mailman/listinfo/mono-bugs
