X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftypes.h;h=6af0368720313d4c8cb7260566a92726f5256daa;hp=3559d72b5ee93627019d2f25043ec61f8fe07004;hb=7756344d5d2b93970e7cd423f8cbf6fb1da11b74;hpb=3984b8f8f0e1f53c737020c936f2a8372029545d

diff --git a/src/types.h b/src/types.h
index 3559d72b..6af03687 100644
--- a/src/types.h
+++ b/src/types.h
@@ -345,6 +345,11 @@ inline Score operator*(Score s, int i) {
   return result;
 }
 
+/// Multiplication of a Score by an boolean
+inline Score operator*(Score s, bool b) {
+  return Score(int(s) * int(b));
+}
+
 constexpr Color operator~(Color c) {
   return Color(c ^ BLACK); // Toggle color
 }
@@ -361,6 +366,10 @@ constexpr Piece operator~(Piece pc) {
   return Piece(pc ^ 8); // Swap color of piece B_KNIGHT -> W_KNIGHT
 }
 
+inline File map_to_queenside(File f) {
+  return std::min(f, File(FILE_H - f)); // Map files ABCDEFGH to files ABCDDCBA
+}
+
 constexpr CastlingRights operator&(Color c, CastlingRights cr) {
   return CastlingRights((c == WHITE ? WHITE_CASTLING : BLACK_CASTLING) & cr);
 }
@@ -442,6 +451,10 @@ constexpr Move make_move(Square from, Square to) {
   return Move((from << 6) + to);
 }
 
+constexpr Move reverse_move(Move m) {
+  return make_move(to_sq(m), from_sq(m));
+}
+
 template<MoveType T>
 constexpr Move make(Square from, Square to, PieceType pt = KNIGHT) {
   return Move(T + ((pt - KNIGHT) << 12) + (from << 6) + to);