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Remove a few file_of's (simplify adjacent_files_bb) #2171

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This is a non-functional simplification that removes two file_of(s).

STC
LLR: 2.96 (-2.94,2.94) [-3.00,1.00]
Total: 22030 W: 5106 L: 4984 D: 11940
http://tests.stockfishchess.org/tests/view/5cf028de0ebc5925cf0839e7
This commit is contained in:
protonspring
2019-06-09 06:31:16 -06:00
committed by Marco Costalba
parent 5935daf8a5
commit 14e23d520f
2 changed files with 5 additions and 6 deletions
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8
src/bitboard.h
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@@ -184,8 +184,8 @@ constexpr Bitboard pawn_double_attacks_bb(Bitboard b) {
/// adjacent_files_bb() returns a bitboard representing all the squares on the
/// adjacent files of the given one.
inline Bitboard adjacent_files_bb(File f) {
return shift<EAST>(file_bb(f)) | shift<WEST>(file_bb(f));
inline Bitboard adjacent_files_bb(Square s) {
return shift<EAST>(file_bb(s)) | shift<WEST>(file_bb(s));
}
@@ -221,7 +221,7 @@ inline Bitboard forward_file_bb(Color c, Square s) {
/// starting from the given square.
inline Bitboard pawn_attack_span(Color c, Square s) {
return forward_ranks_bb(c, s) & adjacent_files_bb(file_of(s));
return forward_ranks_bb(c, s) & adjacent_files_bb(s);
}
@@ -229,7 +229,7 @@ inline Bitboard pawn_attack_span(Color c, Square s) {
/// the given color and on the given square is a passed pawn.
inline Bitboard passed_pawn_span(Color c, Square s) {
return forward_ranks_bb(c, s) & (adjacent_files_bb(file_of(s)) | file_bb(s));
return forward_ranks_bb(c, s) & (adjacent_files_bb(s) | file_bb(s));
}