Retire mirror()

Inline the only caller site. No functional change.
official-stockfish · Oct 24, 2013 · 48f38f3 · 48f38f3
1 parent 281472e
commit 48f38f3
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Showing 2 changed files with 1 addition and 5 deletions.
diff --git a/src/endgame.cpp b/src/endgame.cpp
@@ -72,7 +72,7 @@ namespace {
     assert(pos.count<PAWN>(strongSide) == 1);
 
     if (file_of(pos.list<PAWN>(strongSide)[0]) >= FILE_E)
-        sq = mirror(sq);
+        sq = Square(sq ^ 7); // Mirror SQ_H1 -> SQ_A1
 
     if (strongSide == BLACK)
         sq = ~sq;

diff --git a/src/types.h b/src/types.h
@@ -371,10 +371,6 @@ inline Rank rank_of(Square s) {
   return Rank(s >> 3);
 }
 
-inline Square mirror(Square s) {
-  return Square(s ^ 7); // Horizontal flip SQ_A1 -> SQ_H1
-}
-
 inline Square relative_square(Color c, Square s) {
   return Square(s ^ (c * 56));
 }