Prefer 0 to EmptyBoardBB

[stockfish] / src / bitboard.h

diff --git a/src/bitboard.h b/src/bitboard.h
index 1c8a8c2245bee5a8000016eacf1d3fa3b9b7a2fa..8366827804dea8a87afa2aaae09aa73ffb9ea79a 100644 (file)
--- a/src/bitboard.h
+++ b/src/bitboard.h
@@ -23,26 +23,6 @@
 
 #include "types.h"
 
-const Bitboard EmptyBoardBB = 0;
-
-const Bitboard FileABB = 0x0101010101010101ULL;
-const Bitboard FileBBB = FileABB << 1;
-const Bitboard FileCBB = FileABB << 2;
-const Bitboard FileDBB = FileABB << 3;
-const Bitboard FileEBB = FileABB << 4;
-const Bitboard FileFBB = FileABB << 5;
-const Bitboard FileGBB = FileABB << 6;
-const Bitboard FileHBB = FileABB << 7;
-
-const Bitboard Rank1BB = 0xFF;
-const Bitboard Rank2BB = Rank1BB << (8 * 1);
-const Bitboard Rank3BB = Rank1BB << (8 * 2);
-const Bitboard Rank4BB = Rank1BB << (8 * 3);
-const Bitboard Rank5BB = Rank1BB << (8 * 4);
-const Bitboard Rank6BB = Rank1BB << (8 * 5);
-const Bitboard Rank7BB = Rank1BB << (8 * 6);
-const Bitboard Rank8BB = Rank1BB << (8 * 7);
-
 extern Bitboard SquaresByColorBB[2];
 extern Bitboard FileBB[8];
 extern Bitboard NeighboringFilesBB[8];