[Mono-bugs] [Bug 80298][Wis] New - Enum.ToString("X") outputs e.g. "000000d1" versus MSFT "D1" etc

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Mon Dec 18 06:40:15 EST 2006

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Changed by andyhume32 at yahoo.co.uk.


--- shadow/80298	2006-12-18 06:40:15.000000000 -0500
+++ shadow/80298.tmp.6482	2006-12-18 06:40:15.000000000 -0500
@@ -0,0 +1,52 @@
+Bug#: 80298
+Product: Mono: Class Libraries
+Version: 1.2
+OS Details: 
+Status: NEW   
+Priority: Wishlist
+Component: CORLIB
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: andyhume32 at yahoo.co.uk               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+Summary: Enum.ToString("X") outputs e.g. "000000d1" versus MSFT "D1" etc
+I don't know what level of "same behaviour" is being aimed for.  This 
+seems at the far end of the spectrum, but I'll report it anyway.  It may 
+well be WONTFIX, or erm NOTABUG.
+The result of enumValue.ToString("X") is different on Mono from MSFT.  In 
+the case of the following
+    enum FooByteEnum : byte{
+        ...
+    }
+On the MSFT CLRv2 it returns e.g. "D1", whereas on Mono it 
+returns "000000d1".  Similarly "02" versus "00000002".
+On a enum with the underlying type not set (thus Int32), the outputs 
+are: "000000D1" versus "000000d1", and both produce "00000002".
+A set of unit-tests is attached.
+In my code base I've changed my code to cope:
+    String msg = String.Format
+        ExMsgPrefix_UnexpectedResponseCode + "0x{2:X2} ({0:G}){1}.",
+        m_code, reason,
+        // We want the response code enum to be formatted as e.g. 0xD1,
+        // Enum.ToString in FXv2 does that (the underlying type is Byte
+        // after all).
+        // However:
+        // * NETCFv1 -- Doesn't support the X formatting code at all.
+        // * Mono- -- Formats it as e.g. 0x000000d1.
+        (byte)m_code // Cause use Byte.ToString
+        );

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