Enable compilation on older Windows systems

[stockfish] / src / movegen.cpp

diff --git a/src/movegen.cpp b/src/movegen.cpp
index 5f3ba90a479837013d9f84f1aaafb5344f274b38..5095bb7455e6f36966d884ea297a8431b363183a 100644 (file)
--- a/src/movegen.cpp
+++ b/src/movegen.cpp
@@ -52,9 +52,9 @@ namespace {
     constexpr Direction UpRight  = (Us == WHITE ? NORTH_EAST : SOUTH_WEST);
     constexpr Direction UpLeft   = (Us == WHITE ? NORTH_WEST : SOUTH_EAST);
 
-    const Bitboard emptySquares = Type == QUIETS || Type == QUIET_CHECKS ? target : ~pos.pieces();
-    const Bitboard enemies      = Type == EVASIONS ? pos.checkers()
-                                : Type == CAPTURES ? target : pos.pieces(Them);
+    const Bitboard emptySquares = ~pos.pieces();
+    const Bitboard enemies      =  Type == EVASIONS ? pos.checkers()
+                                                    : pos.pieces(Them);
 
     Bitboard pawnsOn7    = pos.pieces(Us, PAWN) &  TRank7BB;
     Bitboard pawnsNotOn7 = pos.pieces(Us, PAWN) & ~TRank7BB;