Retire undo_null_move()

[stockfish] / src / position.h

diff --git a/src/position.h b/src/position.h
index fd2222b4ec9360cf3c04e882d3324aa2ea23b444..1bb2e3888e47edfe155cf863f68b7ec0efc0b126 100644 (file)
--- a/src/position.h
+++ b/src/position.h
@@ -166,8 +166,7 @@ public:
   void do_move(Move m, StateInfo& st);
   void do_move(Move m, StateInfo& st, const CheckInfo& ci, bool moveIsCheck);
   void undo_move(Move m);
-  void do_null_move(StateInfo& st);
-  void undo_null_move();
+  template<bool Do> void do_null_move(StateInfo& st);
 
   // Static exchange evaluation
   int see(Move m) const;
@@ -214,14 +213,12 @@ private:
   // Initialization helper functions (used while setting up a position)
   void clear();
   void put_piece(Piece p, Square s);
-  void set_castle(int f, Square ksq, Square rsq);
-  void set_castling_rights(char token);
+  void set_castle_right(Square ksq, Square rsq);
   bool move_is_legal(const Move m) const;
 
   // Helper functions for doing and undoing moves
   void do_capture_move(Key& key, PieceType capture, Color them, Square to, bool ep);
-  void do_castle_move(Move m);
-  void undo_castle_move(Move m);
+  template<bool Do> void do_castle_move(Move m);
 
   template<bool FindPinned>
   Bitboard hidden_checkers() const;
@@ -263,7 +260,7 @@ private:
 
   // Static variables
   static Score pieceSquareTable[16][64]; // [piece][square]
-  static Key zobrist[2][8][64];          // [color][pieceType][square]
+  static Key zobrist[2][8][64];          // [color][pieceType][square]/[piece count]
   static Key zobEp[64];                  // [square]
   static Key zobCastle[16];              // [castleRight]
   static Key zobSideToMove;