Use a trivially copyable struct for TBTables::Entry instead of a tuple.

[stockfish] / src / psqt.cpp

diff --git a/src/psqt.cpp b/src/psqt.cpp
index c11dc5ba68c7ce4cc4d71d4aa6bb4db883970404..7fa36ac83dd4a4d5b0e8e19f96f59f5699a4a049 100644 (file)
--- a/src/psqt.cpp
+++ b/src/psqt.cpp
@@ -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
@@ -21,11 +21,7 @@
 #include <algorithm>
 
 #include "types.h"
-
-Value PieceValue[PHASE_NB][PIECE_NB] = {
-  { VALUE_ZERO, PawnValueMg, KnightValueMg, BishopValueMg, RookValueMg, QueenValueMg },
-  { VALUE_ZERO, PawnValueEg, KnightValueEg, BishopValueEg, RookValueEg, QueenValueEg }
-};
+#include "bitboard.h"
 
 namespace PSQT {
 
@@ -112,17 +108,14 @@ void init() {
 
   for (Piece pc = W_PAWN; pc <= W_KING; ++pc)
   {
-      PieceValue[MG][~pc] = PieceValue[MG][pc];
-      PieceValue[EG][~pc] = PieceValue[EG][pc];
-
       Score score = make_score(PieceValue[MG][pc], PieceValue[EG][pc]);
 
       for (Square s = SQ_A1; s <= SQ_H8; ++s)
       {
-          File f = map_to_queenside(file_of(s));
+          File f = File(edge_distance(file_of(s)));
           psq[ pc][ s] = score + (type_of(pc) == PAWN ? PBonus[rank_of(s)][file_of(s)]
                                                       : Bonus[pc][rank_of(s)][f]);
-          psq[~pc][~s] = -psq[pc][s];
+          psq[~pc][flip_rank(s)] = -psq[pc][s];
       }
   }
 }