Switched the Iterator implementation to a dedicated helper class (to hide the specific implementation, since it's pretty messy and may change).

include/iterator.h

@@ -0,0 +1,29 @@
+#pragma once
+
+namespace YAML
+{
+	class Node;
+	struct IterPriv;
+
+	class Iterator
+	{
+	public:
+		Iterator();
+		Iterator(IterPriv *pData);
+		Iterator(const Iterator& rhs);
+		~Iterator();
+
+		friend bool operator == (const Iterator& it, const Iterator& jt);
+		friend bool operator != (const Iterator& it, const Iterator& jt);
+		Iterator& operator = (const Iterator& rhs);
+		Iterator& operator ++ ();
+		Iterator operator ++ (int);
+		const Node& operator * ();
+		const Node *operator -> ();
+		const Node& first();
+		const Node& second();
+
+	private:
+		IterPriv *m_pData;
+	};
+}