[Mono-bugs] [Bug 79714][Wis] New - SortedList "Contains" sometimes fails with "string" keys

bugzilla-daemon at bugzilla.ximian.com bugzilla-daemon at bugzilla.ximian.com
Sat Oct 21 14:36:05 EDT 2006

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Changed by turchi at ntsc.com.


--- shadow/79714	2006-10-21 14:36:05.000000000 -0400
+++ shadow/79714.tmp.6156	2006-10-21 14:36:05.000000000 -0400
@@ -0,0 +1,51 @@
+Bug#: 79714
+Product: Mono: Class Libraries
+Version: 1.1
+OS Details: Fedora Core Linux
+Status: NEW   
+Priority: Wishlist
+Component: System
+AssignedTo: mono-bugs at ximian.com                            
+ReportedBy: turchi at ntsc.com               
+QAContact: mono-bugs at ximian.com
+TargetMilestone: ---
+Summary: SortedList "Contains" sometimes fails with "string" keys
+Please fill in this template when reporting a bug, unless you know what you
+are doing.
+Description of Problem:
+Using a SortedList with "string" keys, sometimes "Contains(somekey)"
+returns a "false" even if the key is present (a for-loop confirm this).
+Even "Add(samekey)" works. This appear a "Comparer"-related problem (the
+bisection search fails). Using (with gmcs) an "Ordinal" comparer, the
+problem disappear. Characters like "-" and "'" are more problematic.
+I've got the same results under Fedora Core 5 mono ( and
+Fedora Core 6 Test 3 (
+Steps to reproduce the problem:
+1. Fill an array of strings, with some repeated.
+2. try to add only new keys, asking "Contains" before adding a new key
+Actual Results:
+a list with some repeated keys 
+Expected Results:
+a list with unique keys
+How often does this happen? 
+with the right strings set, everytime.
+Additional Information:
+I'm sorry, my english is alpha version.

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