[Mono-bugs] [Bug 710537] New: Enum.ToString gives incorrect result for some ulong based enums

bugzilla_noreply at novell.com bugzilla_noreply at novell.com
Thu Aug 4 19:16:13 EDT 2011



           Summary: Enum.ToString gives incorrect result for some ulong
                    based enums
    Classification: Mono
           Product: Mono: Class Libraries
           Version: 2.10.x
          Platform: x86
        OS/Version: Windows XP
            Status: NEW
          Severity: Normal
          Priority: P5 - None
         Component: CORLIB
        AssignedTo: mono-bugs at lists.ximian.com
        ReportedBy: joe at mistachkin.com
         QAContact: mono-bugs at lists.ximian.com
          Found By: ---
           Blocker: ---

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:
Gecko/20110707 Firefox/3.6.19 ( .NET CLR 3.5.30729; .NET4.0E)

using System;

namespace ConsoleApplication1
    class Program
        public enum MyEnumType : ulong
            None = 0x0,
            Reserved = 0x8000000000000000

        static void Main(string[] args)
            MyEnumType value = MyEnumType.None;

            Console.WriteLine("{0} {1}",
                MyEnumType.None, value.ToString());

Reproducible: Always

Steps to Reproduce:
1. Compile and run the above C# code in .NET and Mono.
2. Observe that the results differ in .NET and Mono.

Actual Results:  
0 0

Expected Results:  
None None

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