--- UnitTest.cpp	2004/05/14 18:26:01	8
+++ UnitTest.cpp	2004/05/14 20:57:49	10
@@ -10,6 +10,23 @@
 
 using namespace std;
 
+template<typename Type>
+bool contains(const Type& value, DoublyLinkedList<Type>& list)
+{
+	for (Iterator<Type> itor(list.iterator()); !itor.end(); itor++)
+	{
+		if (*itor == value) return true;
+	}
+
+	return false;
+}
+
+class VowelVisitor : public Visitor<string>
+{
+public:
+	void visit(const string& value) { if (value.find_first_of("aAeEiIoOuU") == 0) cout << value << '\n'; }
+};
+
 int main(int argc, char* argv[])
 {
 	cout.setf(ios_base::boolalpha);
@@ -41,5 +58,25 @@ int main(int argc, char* argv[])
 		cout << *itor << '\n';
 	}
 
+	cout << "contains(3, list) = " << contains(3, list) << '\n'
+		<< "contains(4, list) = " << contains(4, list) << '\n';
+
+	DoublyLinkedList<string> words;
+
+	words.addFront("Douglas");
+	words.addBack("Allen");
+	words.addFront("Edward");
+	words.addBack("attack");
+	words.addFront("Thrift");
+
+	for (Iterator<string> itor(words.iterator()); !itor.end(); itor++)
+	{
+		if (itor->find_first_of("aAeEiIoOuU") == 0) cout << *itor << '\n';
+	}
+
+	VowelVisitor vowels;
+
+	words.accept(dynamic_cast<Visitor<string>*>(&vowels));
+
 	return 0;
 }