Change pawn_attacks() API

[stockfish] / src / endgame.cpp

diff --git a/src/endgame.cpp b/src/endgame.cpp
index 882c07cbf43d7c9ec3d08218920408c3509f7e07..bc9b75eaabb84301abe4b7e344a9577cd20b77ff 100644 (file)
--- a/src/endgame.cpp
+++ b/src/endgame.cpp
@@ -437,7 +437,7 @@ ScaleFactor ScalingFunction<KQKRPs>::apply(const Position& pos) {
       && (pos.piece_attacks<KING>(kingSq) & pos.pieces(PAWN, weakerSide)))
   {
       Square rsq = pos.piece_list(weakerSide, ROOK, 0);
-      if (pos.pawn_attacks(strongerSide, rsq) & pos.pieces(PAWN, weakerSide))
+      if (pos.pawn_attacks(rsq, strongerSide) & pos.pieces(PAWN, weakerSide))
           return ScaleFactor(0);
   }
   return SCALE_FACTOR_NONE;