Use a std::bitset for KPKBitbase

[stockfish] / src / pawns.h

diff --git a/src/pawns.h b/src/pawns.h
index ef4b83f844b60785c3cca123313537f5e176331b..bd17618f5d8f31fd5009d914b76d78b1a9a7e271 100644 (file)
--- a/src/pawns.h
+++ b/src/pawns.h
@@ -2,7 +2,7 @@
   Stockfish, a UCI chess playing engine derived from Glaurung 2.1
   Copyright (C) 2004-2008 Tord Romstad (Glaurung author)
   Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
-  Copyright (C) 2015-2019 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
+  Copyright (C) 2015-2020 Marco Costalba, Joona Kiiski, Gary Linscott, 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
@@ -49,7 +49,7 @@ struct Entry {
   Score do_king_safety(const Position& pos);
 
   template<Color Us>
-  void evaluate_shelter(const Position& pos, Square ksq, Score& shelter);
+  Score evaluate_shelter(const Position& pos, Square ksq);
 
   Key key;
   Score scores[COLOR_NB];
@@ -59,10 +59,9 @@ struct Entry {
   Square kingSquares[COLOR_NB];
   Score kingSafety[COLOR_NB];
   int castlingRights[COLOR_NB];
-  int pawnsOnSquares[COLOR_NB][COLOR_NB]; // [color][light/dark squares]
 };
 
-typedef HashTable<Entry, 16384> Table;
+typedef HashTable<Entry, 131072> Table;
 
 Entry* probe(const Position& pos);