text: // Copyright (c) 2018 The GleecBTC Core developers
  // Distributed under the MIT software license, see the accompanying
  // file COPYING or http://www.opensource.org/licenses/mit-license.php.
  
  #ifndef GLEECBTC_UTIL_BYTEVECTORHASH_H
  #define GLEECBTC_UTIL_BYTEVECTORHASH_H
  
  #include <stdint.h>
  #include <vector>
  
  /**
   * Implementation of Hash named requirement for types that internally store a byte array. This may
   * be used as the hash function in std::unordered_set or std::unordered_map over such types.
   * Internally, this uses a random instance of SipHash-2-4.
   */
  class ByteVectorHash final
  {
  private:
      uint64_t m_k0, m_k1;
  
  public:
      ByteVectorHash();
      size_t operator()(const std::vector<unsigned char>& input) const;
  };
  
  #endif // GLEECBTC_UTIL_BYTEVECTORHASH_H
  