Remove a few file_of's (simplify adjacent_files_bb) #2171

[stockfish] / src / pawns.cpp

diff --git a/src/pawns.cpp b/src/pawns.cpp
index 47c89ed4c076c73d6be4647ba1cd16f960438cec..2b4f039ecf334857702fefd7edf2952aefcad675 100644 (file)
--- a/src/pawns.cpp
+++ b/src/pawns.cpp
@@ -87,7 +87,6 @@ namespace {
     {
         assert(pos.piece_on(s) == make_piece(Us, PAWN));
 
-        File f = file_of(s);
         Rank r = relative_rank(Us, s);
 
         e->pawnAttacksSpan[Us] |= pawn_attack_span(Us, s);
@@ -98,7 +97,7 @@ namespace {
         lever      = theirPawns & PawnAttacks[Us][s];
         leverPush  = theirPawns & PawnAttacks[Us][s + Up];
         doubled    = ourPawns   & (s - Up);
-        neighbours = ourPawns   & adjacent_files_bb(f);
+        neighbours = ourPawns   & adjacent_files_bb(s);
         phalanx    = neighbours & rank_bb(s);
         support    = neighbours & rank_bb(s - Up);