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Retire SignedDirectionTable[] and RayBB[]

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Function ray_bb() was used just in one endgame where can
be used squares_in_front_of() instead.

No functional change.

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba
2010-12-26 11:58:48 +01:00
parent 6080fecf9c
commit f08a6eed0d
5 changed files with 35 additions and 82 deletions
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9
src/bitboard.h
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@@ -67,7 +67,6 @@ extern Bitboard SetMaskBB[65];
extern Bitboard ClearMaskBB[65];
extern Bitboard StepAttackBB[16][64];
extern Bitboard RayBB[64][8];
extern Bitboard BetweenBB[64][64];
extern Bitboard SquaresInFrontMask[2][64];
@@ -208,14 +207,6 @@ inline Bitboard behind_bb(Color c, Square s) {
}
/// ray_bb() gives a bitboard representing all squares along the ray in a
/// given direction from a given square.
inline Bitboard ray_bb(Square s, SignedDirection d) {
return RayBB[s][d];
}
/// Functions for computing sliding attack bitboards. rook_attacks_bb(),
/// bishop_attacks_bb() and queen_attacks_bb() all take a square and a
/// bitboard of occupied squares as input, and return a bitboard representing