X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fhistory.h;h=ce87b7e137e03ba002636b5c47741a0df01db168;hp=b12169471842a50a6b85be1314082646462f1062;hb=d6fdd4f6d95a2a958a73484fb7505460b12af28e;hpb=f37741cc83e620588d49bbb3a2349c9505e87f61

diff --git a/src/history.h b/src/history.h
index b1216947..ce87b7e1 100644
--- a/src/history.h
+++ b/src/history.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) 2008-2009 Marco Costalba
+  Copyright (C) 2008-2010 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
@@ -49,13 +49,13 @@ public:
   void clear();
   void success(Piece p, Square to, Depth d);
   void failure(Piece p, Square to, Depth d);
-  int move_ordering_score(Piece p, Square to) const;
-  void set_gain(Piece p, Square from, Square to, Value delta);
-  Value gain(Piece p, Square from, Square to) const;
+  int value(Piece p, Square to) const;
+  void set_gain(Piece p, Square to, Value delta);
+  Value gain(Piece p, Square to) const;
 
 private:
   int history[16][64];  // [piece][square]
-  int maxStaticValueDelta[16][64][64];  // [piece][from_square][to_square]
+  int maxStaticValueDelta[16][64];  // [piece][from_square][to_square]
 };
 
 
@@ -70,8 +70,21 @@ private:
 /// the effect that parts of the search tree which have been searched
 /// recently have a bigger importance for move ordering than the moves which
 /// have been searched a long time ago.
+/// Current policy is to set this as high as possible, but avoid overflow.
 
-const int HistoryMax = 50000 * OnePly;
+const int HistoryMax = (1 << 28);
 
 
+////
+//// Inline functions
+////
+
+inline int History::value(Piece p, Square to) const {
+  return history[p][to];
+}
+
+inline Value History::gain(Piece p, Square to) const {
+  return Value(maxStaticValueDelta[p][to]);
+}
+
 #endif // !defined(HISTORY_H_INCLUDED)