class OrderEncoding;
class OrderGraph;
+class OrderNodeKey;
class OrderNode;
class OrderEdge;
+class DOREdge;
class AutoTuner;
class SearchTuner;
class EncodingGraph;
class EncodingNode;
class EncodingEdge;
+class EncodingSubGraph;
struct IncrementalSolver;
typedef struct IncrementalSolver IncrementalSolver;