Use distance<file>() function in endgame.cpp

[stockfish] / src / endgame.cpp

diff --git a/src/endgame.cpp b/src/endgame.cpp
index 82a01b12f7ace602793c1ba6e813165f54144a0f..daef61f2f587ecb6ba858b1a985a9ae113c3415c 100644 (file)
--- a/src/endgame.cpp
+++ b/src/endgame.cpp
@@ -128,9 +128,8 @@ Endgames::Endgames() {
 
 template<EndgameType E, typename T>
 void Endgames::add(const string& code) {
-
-  map<T>()[key(code, WHITE)] = std::unique_ptr<T>(new Endgame<E>(WHITE));
-  map<T>()[key(code, BLACK)] = std::unique_ptr<T>(new Endgame<E>(BLACK));
+  map<T>()[key(code, WHITE)] = std::unique_ptr<EndgameBase<T>>(new Endgame<E>(WHITE));
+  map<T>()[key(code, BLACK)] = std::unique_ptr<EndgameBase<T>>(new Endgame<E>(BLACK));
 }
 
 
@@ -472,7 +471,7 @@ ScaleFactor Endgame<KRPKR>::operator()(const Position& pos) const {
   if (   r == RANK_6
       && distance(bksq, queeningSq) <= 1
       && rank_of(wksq) + tempo <= RANK_6
-      && (rank_of(brsq) == RANK_1 || (!tempo && distance(file_of(brsq), f) >= 3)))
+      && (rank_of(brsq) == RANK_1 || (!tempo && distance<File>(brsq, wpsq) >= 3)))
       return SCALE_FACTOR_DRAW;
 
   if (   r >= RANK_6