switch(piece_on(f)) {
case WP: return white_pawn_attacks_square(f, t);
case BP: return black_pawn_attacks_square(f, t);
- case WN: case BN: return knight_attacks_square(f, t);
- case WB: case BB: return bishop_attacks_square(f, t);
- case WR: case BR: return rook_attacks_square(f, t);
- case WQ: case BQ: return queen_attacks_square(f, t);
- case WK: case BK: return king_attacks_square(f, t);
+ case WN: case BN: return piece_attacks_square<KNIGHT>(f, t);
+ case WB: case BB: return piece_attacks_square<BISHOP>(f, t);
+ case WR: case BR: return piece_attacks_square<ROOK>(f, t);
+ case WQ: case BQ: return piece_attacks_square<QUEEN>(f, t);
+ case WK: case BK: return piece_attacks_square<KING>(f, t);
default: return false;
}
switch(move_promotion(m)) {
case KNIGHT:
- return knight_attacks_square(to, ksq);
+ return piece_attacks_square<KNIGHT>(to, ksq);
case BISHOP:
return bit_is_set(bishop_attacks_bb(to, b), ksq);
case ROOK:
switch(piece_on(f)) {
case WP: return white_pawn_attacks_square(t, s);
case BP: return black_pawn_attacks_square(t, s);
- case WN: case BN: return knight_attacks_square(t, s);
- case WB: case BB: return bishop_attacks_square(t, s);
- case WR: case BR: return rook_attacks_square(t, s);
- case WQ: case BQ: return queen_attacks_square(t, s);
- case WK: case BK: return king_attacks_square(t, s);
+ case WN: case BN: return piece_attacks_square<KNIGHT>(t, s);
+ case WB: case BB: return piece_attacks_square<BISHOP>(t, s);
+ case WR: case BR: return piece_attacks_square<ROOK>(t, s);
+ case WQ: case BQ: return piece_attacks_square<QUEEN>(t, s);
+ case WK: case BK: return piece_attacks_square<KING>(t, s);
default: assert(false);
}
Bitboard attacks_to(Square s) const;
Bitboard attacks_to(Square s, Color c) const;
bool is_check() const;
- bool piece_attacks_square(Square f, Square t) const;
bool white_pawn_attacks_square(Square f, Square t) const;
bool black_pawn_attacks_square(Square f, Square t) const;
- bool knight_attacks_square(Square f, Square t) const;
- bool bishop_attacks_square(Square f, Square t) const;
- bool rook_attacks_square(Square f, Square t) const;
- bool queen_attacks_square(Square f, Square t) const;
- bool king_attacks_square(Square f, Square t) const;
+
+ template<PieceType>
+ Bitboard piece_attacks_square(Square f, Square t) const; // Dispatch at compile-time
+
+ bool piece_attacks_square(Square f, Square t) const; // Dispatch at run-time
// Properties of moves
bool move_is_legal(Move m) const;
return bit_is_set(pawn_attacks(BLACK, f), t);
}
-inline bool Position::knight_attacks_square(Square f, Square t) const {
- return bit_is_set(piece_attacks<KNIGHT>(f), t);
-}
-
-inline bool Position::bishop_attacks_square(Square f, Square t) const {
- return bit_is_set(piece_attacks<BISHOP>(f), t);
-}
-
-inline bool Position::rook_attacks_square(Square f, Square t) const {
- return bit_is_set(piece_attacks<ROOK>(f), t);
-}
-
-inline bool Position::queen_attacks_square(Square f, Square t) const {
- return bit_is_set(piece_attacks<QUEEN>(f), t);
-}
-
-inline bool Position::king_attacks_square(Square f, Square t) const {
- return bit_is_set(piece_attacks<KING>(f), t);
+template<PieceType Piece>
+Bitboard Position::piece_attacks_square(Square f, Square t) const {
+ return bit_is_set(piece_attacks<Piece>(f), t);
}
inline bool Position::pawn_is_passed(Color c, Square s) const {