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

src/ltnode.h

@@ -0,0 +1,10 @@
+#pragma once
+
+namespace YAML
+{
+	class Node;
+
+	struct ltnode {
+		bool operator()(const Node *pNode1, const Node *pNode2) const;
+	};
+}