san.cpp pass position as constant reference

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 58884c37f42cb4ee778c9b0a889303b16d6a7b65..abac6efc1ef56e4b57a22734558c5d1c3564348a 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -39,6 +39,8 @@
 //// Variables
 ////
 
+extern SearchStack EmptySearchStack;
+
 int Position::castleRightsMask[64];
 
 Key Position::zobrist[2][8][64];
@@ -273,9 +275,8 @@ void Position::print(Move m) const {
   std::cout << std::endl;
   if (m != MOVE_NONE)
   {
-      Position p(*this);
       std::string col = (color_of_piece_on(move_from(m)) == BLACK ? ".." : "");
-      std::cout << "Move is: " << col << move_to_san(p, m) << std::endl;
+      std::cout << "Move is: " << col << move_to_san(*this, m) << std::endl;
   }
   for (Rank rank = RANK_8; rank >= RANK_1; rank--)
   {