Return static eval when reaching MAX_PLY

[stockfish] / src / position.h

diff --git a/src/position.h b/src/position.h
index 4e15bb136f9997d98e9e070243d142b9836efca2..5d3048ae5cfdf305c34ca78683de2ab6683d5b4b 100644 (file)
--- a/src/position.h
+++ b/src/position.h
@@ -1,7 +1,7 @@
 /*
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
-  Copyright (C) 2008-2013 Marco Costalba, Joona Kiiski, Tord Romstad
+  Copyright (C) 2008-2014 Marco Costalba, Joona Kiiski, Tord Romstad
 
   Stockfish is free software: you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
@@ -141,7 +141,7 @@ public:
   void undo_null_move();
 
   // Static exchange evaluation
-  int see(Move m, int asymmThreshold = 0) const;
+  int see(Move m) const;
   int see_sign(Move m) const;
 
   // Accessing hash keys
@@ -159,8 +159,8 @@ public:
   int game_ply() const;
   bool is_chess960() const;
   Thread* this_thread() const;
-  int64_t nodes_searched() const;
-  void set_nodes_searched(int64_t n);
+  uint64_t nodes_searched() const;
+  void set_nodes_searched(uint64_t n);
   bool is_draw() const;
 
   // Position consistency check, for debugging
@@ -174,7 +174,7 @@ private:
 
   // Helper functions
   void do_castling(Square kfrom, Square kto, Square rfrom, Square rto);
-  Bitboard hidden_checkers(Color c, Color kingColor) const;
+  Bitboard check_blockers(Color c, Color kingColor) const;
   void put_piece(Square s, Color c, PieceType pt);
   void remove_piece(Square s, Color c, PieceType pt);
   void move_piece(Square from, Square to, Color c, PieceType pt);
@@ -201,7 +201,7 @@ private:
   Square castlingRookSquare[COLOR_NB][CASTLING_SIDE_NB];
   Bitboard castlingPath[COLOR_NB][CASTLING_SIDE_NB];
   StateInfo startState;
-  int64_t nodes;
+  uint64_t nodes;
   int gamePly;
   Color sideToMove;
   Thread* thisThread;
@@ -209,11 +209,11 @@ private:
   int chess960;
 };
 
-inline int64_t Position::nodes_searched() const {
+inline uint64_t Position::nodes_searched() const {
   return nodes;
 }
 
-inline void Position::set_nodes_searched(int64_t n) {
+inline void Position::set_nodes_searched(uint64_t n) {
   nodes = n;
 }
 
@@ -315,11 +315,11 @@ inline Bitboard Position::checkers() const {
 }
 
 inline Bitboard Position::discovered_check_candidates() const {
-  return hidden_checkers(sideToMove, ~sideToMove);
+  return check_blockers(sideToMove, ~sideToMove);
 }
 
 inline Bitboard Position::pinned_pieces(Color c) const {
-  return hidden_checkers(c, c);
+  return check_blockers(c, c);
 }
 
 inline bool Position::pawn_passed(Color c, Square s) const {
@@ -379,7 +379,7 @@ inline bool Position::is_chess960() const {
 inline bool Position::capture_or_promotion(Move m) const {
 
   assert(is_ok(m));
-  return type_of(m) ? type_of(m) != CASTLING : !empty(to_sq(m));
+  return type_of(m) != NORMAL ? type_of(m) != CASTLING : !empty(to_sq(m));
 }
 
 inline bool Position::capture(Move m) const {