X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Fposition.h;h=9528bb71963ac01e428fc93ca4f589bebb49e8a3;hp=55dc33feee917ea380f20110b4e5f27e0a527e3b;hb=e8b7109efffd95c8f8f3c030d41952d103b3e0fc;hpb=3361ad42420e578362dcafb94b639738609bf7d7

diff --git a/src/position.h b/src/position.h
index 55dc33fe..9528bb71 100644
--- a/src/position.h
+++ b/src/position.h
@@ -97,7 +97,7 @@ public:
   Position(const Position& p) { *this = p; }
   Position(const Position& p, Thread* t) { *this = p; thisThread = t; }
   Position(const std::string& f, bool c960, Thread* t) { from_fen(f, c960, t); }
-  void operator=(const Position&);
+  Position& operator=(const Position&);
 
   // Text input/output
   void from_fen(const std::string& fen, bool isChess960, Thread* th);
@@ -141,6 +141,7 @@ public:
   // Properties of moves
   bool move_gives_check(Move m, const CheckInfo& ci) const;
   bool move_attacks_square(Move m, Square s) const;
+  bool move_is_legal(const Move m) const;
   bool pl_move_is_legal(Move m, Bitboard pinned) const;
   bool is_pseudo_legal(const Move m) const;
   bool is_capture(Move m) const;
@@ -197,7 +198,6 @@ private:
   void clear();
   void put_piece(Piece p, Square s);
   void set_castle_right(Color c, Square rfrom);
-  bool move_is_legal(const Move m) const;
 
   // Helper template functions
   template<bool Do> void do_castle_move(Move m);
@@ -424,14 +424,14 @@ inline bool Position::is_chess960() const {
 inline bool Position::is_capture_or_promotion(Move m) const {
 
   assert(is_ok(m));
-  return is_special(m) ? !is_castle(m) : !is_empty(to_sq(m));
+  return type_of(m) ? type_of(m) != CASTLE : !is_empty(to_sq(m));
 }
 
 inline bool Position::is_capture(Move m) const {
 
   // Note that castle is coded as "king captures the rook"
   assert(is_ok(m));
-  return (!is_empty(to_sq(m)) && !is_castle(m)) || is_enpassant(m);
+  return (!is_empty(to_sq(m)) && type_of(m) != CASTLE) || type_of(m) == ENPASSANT;
 }
 
 inline PieceType Position::captured_piece_type() const {