[Mono-bugs] [Bug 80904][Wis] New - [System.Globalization.CompareInfo] Compare() crashes when comparing null strings

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Changed by dmitchell at logos.com.

http://bugzilla.ximian.com/show_bug.cgi?id=80904

--- shadow/80904	2007-02-19 17:25:42.000000000 -0500
+++ shadow/80904.tmp.7989	2007-02-19 17:25:42.000000000 -0500
@@ -0,0 +1,40 @@
+Bug#: 80904
+Product: Mono: Class Libraries
+Version: 1.0
+OS: other
+OS Details: 
+Status: NEW   
+Resolution: 
+Severity: 
+Priority: Wishlist
+Component: System
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: dmitchell at logos.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+URL: 
+Cc: 
+Summary: [System.Globalization.CompareInfo] Compare() crashes when comparing null strings
+
+Please fill in this template when reporting a bug, unless you know what you are doing.
+Description of Problem:
+When Microsoft's implementation of CompareInfo.Compare receives null as a parameter, it treats 
+it as the empty string. Mono's implementation throws a null reference exception.
+
+
+Steps to reproduce the problem:
+1. Use System.Globalization.CultureInfo.InvariantCulture.CompareInfo.Compare() to compare a 
+non-null string to null, or to compare null to null.
+2. Watch the crash
+3. 
+
+Actual Results:
+NullReferenceException
+
+Expected Results:
+The parameter should be treated as the empty string
+
+How often does this happen? 
+Always
+
+Additional Information: