X-Git-Url: https://git.sesse.net/?p=stockfish;a=blobdiff_plain;f=src%2Ftt.cpp;h=d0e2d729c8c766e883092277bfc5fd97b2bb58e2;hp=bb49a824519a52b97828b1a6055d2e12cc8f198b;hb=cb2111f0b62afec5fd977e1dd4ca5843bd006956;hpb=96e36a789708164b14c873cdb2e0acac9aca57e7

diff --git a/src/tt.cpp b/src/tt.cpp
index bb49a824..d0e2d729 100644
--- a/src/tt.cpp
+++ b/src/tt.cpp
@@ -94,3 +94,20 @@ TTEntry* TranspositionTable::probe(const Key key, bool& found) const {
 
   return found = false, replace;
 }
+
+
+/// Returns an approximation of the hashtable occupation during a search. The
+/// hash is x permill full, as per UCI protocol.
+
+int TranspositionTable::hashfull() const
+{
+  int cnt = 0;
+  for (int i = 0; i < 1000 / ClusterSize; i++)
+  {
+      const TTEntry* tte = &table[i].entry[0];
+      for (int j = 0; j < ClusterSize; j++)
+          if ((tte[j].genBound8 & 0xFC) == generation8)
+              cnt++;
+  }
+  return cnt;
+}