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Do not pass pinned argument in Position::pl_move_is_legal()

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No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2009-02-19 16:48:57 +01:00
parent 0a0ea36e25
commit 734941672e
4 changed files with 12 additions and 23 deletions
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16
src/position.cpp
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@@ -478,22 +478,12 @@ void Position::find_checkers() {
}
/// Position::pl_move_is_legal() tests whether a pseudo-legal move is legal.
/// There are two versions of this function: One which takes only a
/// move as input, and one which takes a move and a bitboard of pinned
/// pieces. The latter function is faster, and should always be preferred
/// when a pinned piece bitboard has already been computed.
/// Position::pl_move_is_legal() tests whether a pseudo-legal move is legal
bool Position::pl_move_is_legal(Move m) const {
return pl_move_is_legal(m, pinned_pieces(side_to_move()));
}
bool Position::pl_move_is_legal(Move m, Bitboard pinned) const {
bool Position::pl_move_is_legal(Move m) const {
assert(is_ok());
assert(move_is_ok(m));
assert(pinned == pinned_pieces(side_to_move()));
// If we're in check, all pseudo-legal moves are legal, because our
// check evasion generator only generates true legal moves.
@@ -541,7 +531,7 @@ bool Position::pl_move_is_legal(Move m, Bitboard pinned) const {
// A non-king move is legal if and only if it is not pinned or it
// is moving along the ray towards or away from the king.
return ( !bit_is_set(pinned, from)
return ( !bit_is_set(pinned_pieces(us), from)
|| (direction_between_squares(from, ksq) == direction_between_squares(move_to(m), ksq)));
}