size_t cast in TranspositionTable::first_entry()

32-bit truncation would make this function bogus when clusterCount >= 2^33 (ie. Hash >= 256 GB).

No function change.

diff --git a/src/tt.h b/src/tt.h
index c442205253e2232aad77ffde7bf9ea70bc6bc0ba..30a9389788d51979944130042dba489d22ec26c4 100644 (file)
--- a/src/tt.h
+++ b/src/tt.h
@@ -109,7 +109,7 @@ extern TranspositionTable TT;
 
 inline TTEntry* TranspositionTable::first_entry(const Key key) const {
 
 
 inline TTEntry* TranspositionTable::first_entry(const Key key) const {
 

-  return &table[(uint32_t)key & (clusterCount - 1)].entry[0];
+  return &table[(size_t)key & (clusterCount - 1)].entry[0];

 }
 
 #endif // #ifndef TT_H_INCLUDED
 }
 
 #endif // #ifndef TT_H_INCLUDED