[Mono-bugs] [Bug 70468][Nor] Changed - Constant value `-1' cannot be converted to System.IFormattable

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Changed by rharinath@novell.com.

http://bugzilla.ximian.com/show_bug.cgi?id=70468

--- shadow/70468	2004-12-11 16:52:27.000000000 -0500
+++ shadow/70468.tmp.6449	2004-12-15 04:02:37.000000000 -0500
@@ -1,22 +1,21 @@
 Bug#: 70468
 Product: Mono: Compilers
 Version: 1.1
-OS: 
+OS: unknown
 OS Details: 
 Status: NEW   
 Resolution: 
-Severity: 
+Severity: Unknown
 Priority: Normal
 Component: C#
 AssignedTo: mono-bugs@ximian.com                            
 ReportedBy: bmaurer@users.sf.net               
 QAContact: mono-bugs@ximian.com
 TargetMilestone: ---
 URL: 
-Cc: 
 Summary: Constant value `-1' cannot be converted to System.IFormattable
 
 [benm@omega benm]$ cat t.cs
 class X {
         static void Main ()
         {
@@ -26,6 +25,14 @@
 [benm@omega benm]$ mcs t.cs
 t.cs(4) error CS0031: Constant value `-1' cannot be converted to
 System.IFormattable
 Compilation failed: 1 error(s), 0 warnings
 
 Note this *only* happens with negative numbers.
+
+------- Additional Comments From rharinath@novell.com  2004-12-15 04:02 -------
+As well for constant expressions like 1+1.  As well for IComparable.
+
+IIUC, this is because we don't seem to handle implicit boxing
+conversions well.  It seems to be special-cased for IConvertible, but
+not for other interfaces.
+