[Mono-bugs] [Bug 399389] New: DateTime.AddMilliseconds should round to nearest integer

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Wed Jun 11 14:57:26 EDT 2008


           Summary: DateTime.AddMilliseconds should round to nearest integer
           Product: Mono: Class Libraries
           Version: SVN
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: CORLIB
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: gert.driesen at pandora.be
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---

Currently, our implementation of DateTime.AddMilliseconds does not round the
specified number of milliseconds to the nearest integer.

This actually matches the documentation (but not the implementation) of .NET
1.1, but MS fixed the documentation in .NET 2.0.

To reproduce, compile and run the following code:

using System;

class Program
        static void Main ()
                DateTime date = new DateTime (2008, 12, 7);
                dt = dt.AddMilliseconds (8.888);
                Console.WriteLine (dt.Ticks);
                dt = dt.AddMilliseconds (-5.444);
                Console.WriteLine (dt.Ticks);

Expected result:


Actual result:


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