[Mono-bugs] [Bug 53032][Min] New - System.Text.RegularExpression.Match has broken Groups, when match failed

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Changed by nazgul@omega.pl.

http://bugzilla.ximian.com/show_bug.cgi?id=53032

--- shadow/53032	2004-01-18 16:01:28.000000000 -0500
+++ shadow/53032.tmp.867	2004-01-18 16:01:28.000000000 -0500
@@ -0,0 +1,50 @@
+Bug#: 53032
+Product: Mono/Class Libraries
+Version: unspecified
+OS: 
+OS Details: Mandrake 9.2, mono 0.29
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Minor
+Component: System
+AssignedTo: mono-bugs@ximian.com                            
+ReportedBy: nazgul@omega.pl               
+QAContact: mono-bugs@ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: System.Text.RegularExpression.Match has broken Groups, when match failed
+
+Description of Problem: 
+///////////////////////////////////////// 
+using System.Text.RegularExpressions; 
+ 
+class X { 
+ 
+	static int Main () 
+	{ 
+          Regex r = new Regex ("(?<a>c)"); 
+          Match m = r.Match("a"); 
+          for (int i = 0; i < m.Groups.Count; i++) 
+            System.Console.WriteLine (m.Groups[i].ToString()); 
+          return 0; 
+	} 
+} 
+///////////////////////////////////////////// 
+ 
+Steps to reproduce the problem: 
+compile and run above program with 
+mcs test.cs 
+mono text.exe 
+ 
+Actual Results: 
+Unhandled Exception: System.NullReferenceException: A null value was 
+found where an object instance was required 
+ 
+Expected Results: 
+blank line in output (group(s) should contain empty string), at least 
+compared to Microsoft .Net framework 
+ 
+How often does this happen?  
+Always