1 files changed, 5 insertions, 1 deletions
diff --git a/src/bitboard.h b/src/bitboard.h
index 6b89c84..02298d3 100644
--- a/src/bitboard.h
+++ b/src/bitboard.h
@@ -1,7 +1,6 @@
 #include "types.h"
 
 typedef U64 Bitboard;
-#define BIT (U64)1
 
 int popCount(Bitboard bb);
 
@@ -12,3 +11,8 @@ Bitboard ls1b(Bitboard bb);
 int bitscan(Bitboard bb);
 
 int bitscanAndReset(Bitboard* bb);
+
+Bitboard rankMask(enumSquare sq);
+Bitboard fileMask(enumSquare sq);
+Bitboard diagMask(enumSquare sq);
+Bitboard antiDiasMask(enumSquare sq);