[Mono-bugs] [Bug 78954][Nor] New - Removing from List<T> during enumeration should fail

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Changed by scottell.lists at gmail.com.

http://bugzilla.ximian.com/show_bug.cgi?id=78954

--- shadow/78954	2006-07-26 11:01:50.000000000 -0400
+++ shadow/78954.tmp.29474	2006-07-26 11:01:50.000000000 -0400
@@ -0,0 +1,50 @@
+Bug#: 78954
+Product: Mono: Runtime
+Version: 1.1
+OS: All
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: misc
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: scottell.lists at gmail.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: Removing from List<T> during enumeration should fail
+
+Below is a simple program which enumerates through a List<int> and 
+removes each object.  This completes without exception on Mono, but 
+MS.Net 2.0 throws an exception:
+
+Unhandled Exception: System.InvalidOperationException: Collection was 
+modified;
+enumeration operation may not execute.
+   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource 
+resour
+ce)
+   at System.Collections.Generic.List`1.Enumerator.MoveNext()
+   at T.Main()
+
+I think Mono's behavior should be consistent with this.  Here is the 
+sample program:
+
+using System.Collections.Generic;
+
+public class T
+{
+    public static void Main ()
+    {
+        List<int> list = new List<int> ();
+
+        list.Add (0);
+        list.Add (1);
+        list.Add (2);
+
+        foreach ( int ii in list )
+            list.Remove (ii);
+    }
+}