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[stockfish] / src / endgame.h

diff --git a/src/endgame.h b/src/endgame.h
index efc527a7f98f30980fd8677e3ab35568a4a78a36..e350022cce7351178333bf9ee11dc2b0ee175a2a 100644 (file)
--- a/src/endgame.h
+++ b/src/endgame.h
@@ -75,16 +75,16 @@ struct EndgameBase {
 
   virtual ~EndgameBase() {}
   virtual Color color() const = 0;
-  virtual T apply(const Position&) const = 0;
+  virtual T operator()(const Position&) const = 0;
 };
 
 
 template<EndgameType E, typename T = typename eg_family<E>::type>
 struct Endgame : public EndgameBase<T> {
 
-  explicit Endgame(Color c) : strongerSide(c), weakerSide(opposite_color(c)) {}
+  explicit Endgame(Color c) : strongerSide(c), weakerSide(flip(c)) {}
   Color color() const { return strongerSide; }
-  T apply(const Position&) const;
+  T operator()(const Position&) const;
 
 private:
   Color strongerSide, weakerSide;
@@ -93,9 +93,9 @@ private:
 
 /// Endgames class stores in two std::map the pointers to endgame evaluation
 /// and scaling base objects. Then we use polymorphism to invoke the actual
-/// endgame function calling its apply() method that is virtual.
+/// endgame function calling its operator() method that is virtual.
 
-struct Endgames {
+class Endgames {
 
   template<typename T>
   struct Map { typedef std::map<Key, EndgameBase<T>*> type; };
@@ -103,6 +103,7 @@ struct Endgames {
   typedef Map<Value>::type M1;
   typedef Map<ScaleFactor>::type M2;
 
+public:
   Endgames();
   ~Endgames();