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

src/iterpriv.h

@@ -0,0 +1,23 @@
+#pragma once
+
+#include "ltnode.h"
+#include <vector>
+#include <map>
+
+namespace YAML
+{
+	class Node;
+
+	struct IterPriv
+	{
+		IterPriv();
+		IterPriv(std::vector <Node *>::const_iterator it);
+		IterPriv(std::map <Node *, Node *, ltnode>::const_iterator it);
+
+		enum ITER_TYPE { IT_NONE, IT_SEQ, IT_MAP };
+		ITER_TYPE type;
+
+		std::vector <Node *>::const_iterator seqIter;
+		std::map <Node *, Node *, ltnode>::const_iterator mapIter;
+	};
+}