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Fix semantic of piece_attacks<PAWN>

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Return the bitboard with the pawn attacks for both colors
so to be aligned to the meaning of the others piece_attacks<Piece>
templates.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2009-09-13 16:13:49 +01:00
parent 3863cd191c
commit 6709b01903
2 changed files with 2 additions and 2 deletions
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2
src/position.cpp
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@ -667,7 +667,7 @@ inline void Position::update_checkers(Bitboard* pCheckersBB, Square ksq, Square
else if ( Piece != KING
&& !Slider
&& bit_is_set(piece_attacks<Piece>(ksq), to))
&& bit_is_set(Piece == PAWN ? pawn_attacks(opposite_color(sideToMove), ksq) : piece_attacks<Piece>(ksq), to))
set_bit(pCheckersBB, to);
// Discovery checks

2
src/position.h
View file

@ -457,7 +457,7 @@ inline Bitboard Position::piece_attacks(Square s) const {
template<>
inline Bitboard Position::piece_attacks<PAWN>(Square s) const {
return StepAttackBB[piece_of_color_and_type(opposite_color(sideToMove), PAWN)][s];
return StepAttackBB[WP][s] | StepAttackBB[BP][s];
}
template<>