Ressurrect hashfull patch

[stockfish] / src / tt.h

diff --git a/src/tt.h b/src/tt.h
index 420aaa6b60c03a106a949a6c8dfc7e447273fdf0..7343c525fc6847da40c83c3168fdfa857446f73a 100644 (file)
--- a/src/tt.h
+++ b/src/tt.h
@@ -66,7 +66,7 @@ private:
 
 
 /// A TranspositionTable consists of a power of 2 number of clusters and each
-/// cluster consists of TTClusterSize number of TTEntry. Each non-empty entry
+/// cluster consists of ClusterSize number of TTEntry. Each non-empty entry
 /// contains information of exactly one position. The size of a cluster should
 /// not be bigger than a cache line size. In case it is less, it should be padded
 /// to guarantee always aligned accesses.
@@ -74,10 +74,10 @@ private:
 class TranspositionTable {
 
   static const int CacheLineSize = 64;
-  static const int TTClusterSize = 3;
+  static const int ClusterSize = 3;
 
   struct Cluster {
-    TTEntry entry[TTClusterSize];
+    TTEntry entry[ClusterSize];
     char padding[2]; // Align to the cache line size
   };
 
@@ -86,6 +86,7 @@ public:
   void new_search() { generation8 += 4; } // Lower 2 bits are used by Bound
   uint8_t generation() const { return generation8; }
   TTEntry* probe(const Key key, bool& found) const;
+  int hashfull() const;
   void resize(size_t mbSize);
   void clear();