[Mono-bugs] [Bug 77019][Nor] New - List<T>.AddRange thows exception when called with empty collection

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Fri Dec 16 19:59:06 EST 2005


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Changed by awaddell at fnfr.com.

http://bugzilla.ximian.com/show_bug.cgi?id=77019

--- shadow/77019	2005-12-16 19:59:06.000000000 -0500
+++ shadow/77019.tmp.3614	2005-12-16 19:59:06.000000000 -0500
@@ -0,0 +1,77 @@
+Bug#: 77019
+Product: Mono: Class Libraries
+Version: unspecified
+OS: All
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Normal
+Component: CORLIB
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: awaddell at fnfr.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: List<T>.AddRange thows exception when called with empty collection
+
+Description of Problem:
+
+The following code should run clean, but it throws and exception.
+
+using System;
+using System.Collections.Generic;
+using System.Text;
+
+namespace AddRangeBug
+{
+    class Program
+    {
+        static void Main(string[] args)
+        {
+            List<int> myList = new List<int>();
+            Dictionary<string, int> myDictionary = new
+Dictionary<string,int>();
+
+            myList.AddRange(myDictionary.Values);
+
+        }
+    }
+}
+
+
+Steps to reproduce the problem:
+gmcs -target:exe -optimize- -noconfig -nowarn:1691,67  -out:AddRangeBug.exe
+-define:DEBUG -define:TRACE -define:FIXME -define:MONO -define:HEADLESS
+-define:BUGFIX_76441   -reference:System -reference:System.Data
+-reference:System.Xml   Program.cs Properties/AssemblyInfo.cs
+[awaddell at AWLNX AddRangeBug]$ mono AddRangeBug.exe 
+
+[awaddell at AWLNX AddRangeBug]$ 
+
+
+1. 
+2. 
+3. 
+
+Actual Results:
+Unhandled Exception: System.ArgumentException: index larger than largest
+valid index of array
+in <0x001c8>
+System.Collections.Generic.Dictionary`2+ValueCollection[System.String,System.Int32]:CopyTo
+(System.Int32[] , Int32 )
+in <0x0003f> System.Collections.Generic.List`1[System.Int32]:AddCollection
+(ICollection`1 )
+in <0x00098> System.Collections.Generic.List`1[System.Int32]:AddRange
+(IEnumerable`1 )
+in <0x00049> AddRangeBug.Program:Main (System.String[] args)
+
+
+Expected Results:
+clean (same as .NET)
+
+How often does this happen? 
+always
+
+Additional Information:


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