[Mono-bugs] [Bug 78860][Wis] New - case null immediately following another case is always matched

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Changed by nikki at trumphurst.com.

http://bugzilla.ximian.com/show_bug.cgi?id=78860

--- shadow/78860	2006-07-14 13:32:13.000000000 -0400
+++ shadow/78860.tmp.5266	2006-07-14 13:32:13.000000000 -0400
@@ -0,0 +1,85 @@
+Bug#: 78860
+Product: Mono: Compilers
+Version: 1.0
+OS: other
+OS Details: CentOS 4
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: C#
+AssignedTo: rharinath at novell.com                            
+ReportedBy: nikki at trumphurst.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: case null immediately following another case is always matched
+
+using System;
+
+namespace SpecSoft.Lib {
+
+  public class Test {
+
+    public static void Main() {
+      string model = "TSP100";
+
+      System.Console.WriteLine("switch on '{0}'", model);
+
+      switch(model) {
+        case "wibble":
+        case null:
+          System.Console.WriteLine("case null !!!!");
+          break;
+        case "TSP100":
+          System.Console.WriteLine("case TSP100");
+          break;
+      }
+    }
+
+  }
+}
+
+[nikki at router Test]$ mcs Test.cs
+[nikki at router Test]$ mono Test.exe
+switch on 'TSP100'
+case null !!!!
+
+Reordering the first two cases to
+
+using System;
+
+namespace SpecSoft.Lib {
+
+  public class Test {
+
+    public static void Main() {
+      string model = "TSP100";
+
+      System.Console.WriteLine("switch on '{0}'", model);
+
+      switch(model) {
+        case null:
+        case "wibble":
+          System.Console.WriteLine("case null !!!!");
+          break;
+        case "TSP100":
+          System.Console.WriteLine("case TSP100");
+          break;
+      }
+    }
+
+  }
+}
+
+Gives the correct output:
+
+[nikki at router Test]$ mcs Test.cs
+[nikki at router Test]$ mono Test.exe
+switch on 'TSP100'
+case TSP100
+
+Using mono 1.1.15 on CentOS 4 Linux.
+The smae program, compiled using MS C#, but run under Mono, gives the 
+correct behaviour.