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Reformat some comments and conditions

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closes https://github.com/official-stockfish/Stockfish/pull/4814

No functional change
This commit is contained in:
Stéphane Nicolet
2023-10-01 19:18:05 +02:00
committed by Joost VandeVondele
parent a4fedd8152
commit fe53a18f7a
3 changed files with 56 additions and 55 deletions
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18
src/position.cpp
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@@ -102,9 +102,9 @@ std::ostream& operator<<(std::ostream& os, const Position& pos) {
}
// Implements Marcel van Kervinck's cuckoo algorithm to detect repetition of positions
// for 3-fold repetition draws. The algorithm uses two hash tables with Zobrist hashes to
// allow fast detection of recurring positions. For details see:
// Implements Marcel van Kervinck's cuckoo algorithm to detect repetition of positions
// for 3-fold repetition draws. The algorithm uses two hash tables with Zobrist hashes
// to allow fast detection of recurring positions. For details see:
// http://web.archive.org/web/20201107002606/https://marcelk.net/2013-04-06/paper/upcoming-rep-v2.pdf
// First and second hash functions for indexing the cuckoo tables
@@ -188,9 +188,9 @@ Position& Position::set(const string& fenStr, bool isChess960, StateInfo* si, Th
4) En passant target square (in algebraic notation). If there's no en passant
target square, this is "-". If a pawn has just made a 2-square move, this
is the position "behind" the pawn. Following X-FEN standard, this is recorded only
if there is a pawn in position to make an en passant capture, and if there really
is a pawn that might have advanced two squares.
is the position "behind" the pawn. Following X-FEN standard, this is recorded
only if there is a pawn in position to make an en passant capture, and if
there really is a pawn that might have advanced two squares.
5) Halfmove clock. This is the number of halfmoves since the last pawn advance
or capture. This is used to determine if a draw can be claimed under the
@@ -587,8 +587,8 @@ bool Position::pseudo_legal(const Move m) const {
return false;
if ( !(pawn_attacks_bb(us, from) & pieces(~us) & to) // Not a capture
&& !((from + pawn_push(us) == to) && empty(to)) // Not a single push
&& !( (from + 2 * pawn_push(us) == to) // Not a double push
&& !((from + pawn_push(us) == to) && empty(to)) // Not a single push
&& !( (from + 2 * pawn_push(us) == to) // Not a double push
&& (relative_rank(us, from) == RANK_2)
&& empty(to)
&& empty(to - pawn_push(us))))
@@ -959,7 +959,7 @@ void Position::do_castling(Color us, Square from, Square& to, Square& rfrom, Squ
// Remove both pieces first since squares could overlap in Chess960
remove_piece(Do ? from : to);
remove_piece(Do ? rfrom : rto);
board[Do ? from : to] = board[Do ? rfrom : rto] = NO_PIECE; // Since remove_piece doesn't do this for us
board[Do ? from : to] = board[Do ? rfrom : rto] = NO_PIECE; // remove_piece does not do this for us
put_piece(make_piece(us, KING), Do ? to : from);
put_piece(make_piece(us, ROOK), Do ? rto : rfrom);
}