Fix a compilation error for MSVC

[stockfish] / src / evaluate.cpp

diff --git a/src/evaluate.cpp b/src/evaluate.cpp
index 5f4a1ab1fb3c6d697b1e4a0a96791660e5d7f553..55ceadfdbf403c8a1252bc04ba8be4044c73c82a 100644 (file)
--- a/src/evaluate.cpp
+++ b/src/evaluate.cpp
@@ -636,8 +636,8 @@ namespace {
 
         assert(!(pos.pieces(Them, PAWN) & forward_file_bb(Us, s + Up)));
 
-        bb = forward_file_bb(Us, s) & pos.pieces(Them);
-        score -= HinderPassedPawn * bool(bb);
+        if (forward_file_bb(Us, s) & pos.pieces(Them))
+            score -= HinderPassedPawn;
 
         int r = relative_rank(Us, s);
         int w = PassedDanger[r];