Avoid explicit bitwise operators

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index fe4eef57493c8ed3a601120dc7fee3233e7a1b5d..854ab42a1c3c132899e54dddd315653f2e60d11f 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -677,8 +677,7 @@ Value do_evaluate(const Position& pos, Value& margin) {
     Score score = SCORE_ZERO;
 
     // Undefended minors get penalized even if not under attack
-    undefendedMinors =  pos.pieces(Them)
-                      & (pos.pieces(BISHOP) | pos.pieces(KNIGHT))
+    undefendedMinors =  pos.pieces(Them, BISHOP, KNIGHT)
                       & ~ei.attackedBy[Them][ALL_PIECES];
 
     if (undefendedMinors)