X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fbitboard.h;h=715f6c4af485bf8bb7f1313601cb6710024ae0f2;hp=390966e3494273969bdb53a50c6953a6c9782611;hb=7ae3c05795e79c9bd945607cdcfb08198f4c4b45;hpb=351844061eddffac59e7a3c2d16af7ea9661bb3e

diff --git a/src/bitboard.h b/src/bitboard.h
index 390966e3..715f6c4a 100644
--- a/src/bitboard.h
+++ b/src/bitboard.h
@@ -124,13 +124,13 @@ inline Bitboard file_bb(Square s) {
 }
 
 
-/// shift_bb() moves a bitboard one step along direction Delta. Mainly for pawns
+/// shift() moves a bitboard one step along direction D. Mainly for pawns
 
-template<Square Delta>
-inline Bitboard shift_bb(Bitboard b) {
-  return  Delta == DELTA_N  ?  b             << 8 : Delta == DELTA_S  ?  b             >> 8
-        : Delta == DELTA_NE ? (b & ~FileHBB) << 9 : Delta == DELTA_SE ? (b & ~FileHBB) >> 7
-        : Delta == DELTA_NW ? (b & ~FileABB) << 7 : Delta == DELTA_SW ? (b & ~FileABB) >> 9
+template<Square D>
+inline Bitboard shift(Bitboard b) {
+  return  D == NORTH      ?  b             << 8 : D == SOUTH      ?  b             >> 8
+        : D == NORTH_EAST ? (b & ~FileHBB) << 9 : D == SOUTH_EAST ? (b & ~FileHBB) >> 7
+        : D == NORTH_WEST ? (b & ~FileABB) << 7 : D == SOUTH_WEST ? (b & ~FileABB) >> 9
         : 0;
 }