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  Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
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  Copyright (C) 2008-2015 Marco Costalba, Joona Kiiski, Tord Romstad
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  Copyright (C) 2015-2016 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
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  Copyright (C) 2015-2018 Marco Costalba, Joona Kiiski, Gary Linscott, Tord Romstad
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  Stockfish is free software: you can redistribute it and/or modify
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  Stockfish is free software: you can redistribute it and/or modify
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  it under the terms of the GNU General Public License as published by
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  it under the terms of the GNU General Public License as published by
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  the Free Software Foundation, either version 3 of the License, or
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  the Free Software Foundation, either version 3 of the License, or
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  (at your option) any later version.
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  (at your option) any later version.
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  TTEntry* probe(const Key key, bool& found) const;
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  TTEntry* probe(const Key key, bool& found) const;
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  int hashfull() const;
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  int hashfull() const;
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  void resize(size_t mbSize);
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  void resize(size_t mbSize);
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  void clear();
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  void clear();
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  // The lowest order bits of the key are used to get the index of the cluster
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  // The 32 lowest order bits of the key are used to get the index of the cluster
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  TTEntry* first_entry(const Key key) const {
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  TTEntry* first_entry(const Key key) const {
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    return &table[(size_t)key & (clusterCount - 1)].entry[0];
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    return &table[(uint32_t(key) * uint64_t(clusterCount)) >> 32].entry[0];
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  }
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  }
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private:
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private:
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  size_t clusterCount;
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  size_t clusterCount;
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  Cluster* table;
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  Cluster* table;