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Small trivial cleanups

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closes https://github.com/official-stockfish/Stockfish/pull/2801

No functional change
This commit is contained in:
Joost VandeVondele
2020-07-11 16:59:33 +02:00
committed by Stéphane Nicolet
parent 3542033342
commit 5f1843c9cb
17 changed files with 96 additions and 95 deletions
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12
src/bitboard.cpp
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@@ -39,6 +39,16 @@ namespace {
Bitboard BishopTable[0x1480]; // To store bishop attacks
void init_magics(PieceType pt, Bitboard table[], Magic magics[]);
}
/// safe_destination() returns the bitboard of target square for the given step
/// from the given square. If the step is off the board, returns empty bitboard.
inline Bitboard safe_destination(Square s, int step) {
Square to = Square(s + step);
return is_ok(to) && distance(s, to) <= 2 ? square_bb(to) : Bitboard(0);
}
@@ -110,7 +120,7 @@ namespace {
Direction RookDirections[4] = {NORTH, SOUTH, EAST, WEST};
Direction BishopDirections[4] = {NORTH_EAST, SOUTH_EAST, SOUTH_WEST, NORTH_WEST};
for(Direction d : (pt == ROOK ? RookDirections : BishopDirections))
for (Direction d : (pt == ROOK ? RookDirections : BishopDirections))
{
Square s = sq;
while(safe_destination(s, d) && !(occupied & s))