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Code Issues Releases Wiki Activity

Remove redundant argument from hidden_checkers()

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No functional change.
This commit is contained in:
Marco Costalba 2013-12-03 11:06:59 +01:00
parent e6c9ce6358
commit 342fd6385b
2 changed files with 9 additions and 8 deletions
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7
src/position.cpp
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@ -415,20 +415,21 @@ const string Position::pretty(Move move) const {
/// pieces, according to the call parameters. Pinned pieces protect our king and /// pieces, according to the call parameters. Pinned pieces protect our king and
/// discovered check pieces attack the enemy king. /// discovered check pieces attack the enemy king.
Bitboard Position::hidden_checkers(Square ksq, Color c, Color toMove) const { Bitboard Position::hidden_checkers(Color c, Color kingColor) const {
Bitboard b, pinners, result = 0; Bitboard b, pinners, result = 0;
Square ksq = king_square(kingColor);
// Pinners are sliders that give check when a pinned piece is removed // Pinners are sliders that give check when a pinned piece is removed
pinners = ( (pieces( ROOK, QUEEN) & PseudoAttacks[ROOK ][ksq]) pinners = ( (pieces( ROOK, QUEEN) & PseudoAttacks[ROOK ][ksq])
| (pieces(BISHOP, QUEEN) & PseudoAttacks[BISHOP][ksq])) & pieces(c); | (pieces(BISHOP, QUEEN) & PseudoAttacks[BISHOP][ksq])) & pieces(~kingColor);
while (pinners) while (pinners)
{ {
b = between_bb(ksq, pop_lsb(&pinners)) & pieces(); b = between_bb(ksq, pop_lsb(&pinners)) & pieces();
if (!more_than_one(b)) if (!more_than_one(b))
result |= b & pieces(toMove); result |= b & pieces(c);
} }
return result; return result;
} }

10
src/position.h
View file

@ -108,7 +108,7 @@ public:
// Checking // Checking
Bitboard checkers() const; Bitboard checkers() const;
Bitboard discovered_check_candidates() const; Bitboard discovered_check_candidates() const;
Bitboard pinned_pieces(Color toMove) const; Bitboard pinned_pieces(Color c) const;
// Attacks to/from a given square // Attacks to/from a given square
Bitboard attackers_to(Square s) const; Bitboard attackers_to(Square s) const;
@ -174,7 +174,7 @@ private:
// Helper functions // Helper functions
void do_castling(Square kfrom, Square kto, Square rfrom, Square rto); void do_castling(Square kfrom, Square kto, Square rfrom, Square rto);
Bitboard hidden_checkers(Square ksq, Color c, Color toMove) const; Bitboard hidden_checkers(Color c, Color kingColor) const;
void put_piece(Square s, Color c, PieceType pt); void put_piece(Square s, Color c, PieceType pt);
void remove_piece(Square s, Color c, PieceType pt); void remove_piece(Square s, Color c, PieceType pt);
void move_piece(Square from, Square to, Color c, PieceType pt); void move_piece(Square from, Square to, Color c, PieceType pt);
@ -315,11 +315,11 @@ inline Bitboard Position::checkers() const {
} }
inline Bitboard Position::discovered_check_candidates() const { inline Bitboard Position::discovered_check_candidates() const {
return hidden_checkers(king_square(~sideToMove), sideToMove, sideToMove); return hidden_checkers(sideToMove, ~sideToMove);
} }
inline Bitboard Position::pinned_pieces(Color toMove) const { inline Bitboard Position::pinned_pieces(Color c) const {
return hidden_checkers(king_square(toMove), ~toMove, toMove); return hidden_checkers(c, c);
} }
inline bool Position::pawn_passed(Color c, Square s) const { inline bool Position::pawn_passed(Color c, Square s) const {