Small renaming

[stockfish] / src / position.cpp

diff --git a/src/position.cpp b/src/position.cpp
index 55f8bcff5cd960bbcb4234e72e4d4fd8900f9d10..60d619bed4e0636a34b27cb93321dd446a9d6bfc 100644 (file)
--- a/src/position.cpp
+++ b/src/position.cpp
@@ -542,7 +542,7 @@ bool Position::is_pseudo_legal(const Move m) const {
       return false;
 
   // The destination square cannot be occupied by a friendly piece
-  if (piece_on(to) != NO_PIECE && color_of(piece_on(to)) == us)
+  if (pieces(us) & to)
       return false;
 
   // Handle the special case of a pawn move
@@ -652,7 +652,7 @@ bool Position::move_gives_check(Move m, const CheckInfo& ci) const {
       return true;
 
   // Discovery check ?
-  if (ci.dcCandidates && (ci.dcCandidates & from))
+  if (unlikely(ci.dcCandidates) && (ci.dcCandidates & from))
   {
       // For pawn and king moves we need to verify also direction
       if (   (pt != PAWN && pt != KING)