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Bitwise operator overloads between Bitboard and Square

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Yes, we try to be fancy here ;-)

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2012-01-29 09:54:17 +01:00
parent 875a8079bc
commit a492a9dd07
9 changed files with 98 additions and 112 deletions
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6
src/evaluate.cpp
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@@ -453,7 +453,7 @@ namespace {
// Increase bonus if supported by pawn, especially if the opponent has
// no minor piece which can exchange the outpost piece.
if (bonus && bit_is_set(ei.attackedBy[Us][PAWN], s))
if (bonus && (ei.attackedBy[Us][PAWN] & s))
{
if ( !pos.pieces(KNIGHT, Them)
&& !(same_color_squares(s) & pos.pieces(BISHOP, Them)))
@@ -514,7 +514,7 @@ namespace {
// Decrease score if we are attacked by an enemy pawn. Remaining part
// of threat evaluation must be done later when we have full attack info.
if (bit_is_set(ei.attackedBy[Them][PAWN], s))
if (ei.attackedBy[Them][PAWN] & s)
score -= ThreatenedByPawnPenalty[Piece];
// Bishop and knight outposts squares
@@ -944,7 +944,7 @@ namespace {
// Check if (without even considering any obstacles) we're too far away or doubled
if ( pliesToQueen[winnerSide] + 3 <= pliesToGo
|| (squares_in_front_of(loserSide, s) & pos.pieces(PAWN, loserSide)))
xor_bit(&candidates, s);
candidates ^= s;
}
// If any candidate is already a passed pawn it _may_ promote in time. We give up.