text: // Copyright (c) 2012-2016, The CryptoNote developers, The Bytecoin developers
  //
  // This file is part of Bytecoin.
  //
  // Bytecoin is free software: you can redistribute it and/or modify
  // it under the terms of the GNU Lesser General Public License as published by
  // the Free Software Foundation, either version 3 of the License, or
  // (at your option) any later version.
  //
  // Bytecoin is distributed in the hope that it will be useful,
  // but WITHOUT ANY WARRANTY; without even the implied warranty of
  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  // GNU Lesser General Public License for more details.
  //
  // You should have received a copy of the GNU Lesser General Public License
  // along with Bytecoin.  If not, see <http://www.gnu.org/licenses/>.
  
  #pragma once
  
  #include <stddef.h>
  
  #include <CryptoTypes.h>
  #include "generic-ops.h"
  
  namespace Crypto {
  
    extern "C" {
  #include "hash-ops.h"
    }
  
    /*
      Cryptonight hash functions
    */
  
    inline void cn_fast_hash(const void *data, size_t length, Hash &hash) {
      cn_fast_hash(data, length, reinterpret_cast<char *>(&hash));
    }
  
    inline Hash cn_fast_hash(const void *data, size_t length) {
      Hash h;
      cn_fast_hash(data, length, reinterpret_cast<char *>(&h));
      return h;
    }
  
    class cn_context {
    public:
  
      cn_context();
      ~cn_context();
  #if !defined(_MSC_VER) || _MSC_VER >= 1800
      cn_context(const cn_context &) = delete;
      void operator=(const cn_context &) = delete;
  #endif
  
    private:
  
      void *data;
      friend inline void cn_slow_hash(cn_context &, const void *, size_t, Hash &, int);
    };
    
    //extern void cn_slow_hash_variant(const void *data, size_t length, char *hash, int variant);
  
    inline void cn_slow_hash(cn_context &context, const void *data, size_t length, Hash &hash, int variant = 0) {
      (*cn_slow_hash_f)(context.data, data, length, reinterpret_cast<void *>(&hash), variant);
    }
  
    inline void tree_hash(const Hash *hashes, size_t count, Hash &root_hash) {
      tree_hash(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char *>(&root_hash));
    }
  
    inline void tree_branch(const Hash *hashes, size_t count, Hash *branch) {
      tree_branch(reinterpret_cast<const char (*)[HASH_SIZE]>(hashes), count, reinterpret_cast<char (*)[HASH_SIZE]>(branch));
    }
  
    inline void tree_hash_from_branch(const Hash *branch, size_t depth, const Hash &leaf, const void *path, Hash &root_hash) {
      tree_hash_from_branch(reinterpret_cast<const char (*)[HASH_SIZE]>(branch), depth, reinterpret_cast<const char *>(&leaf), path, reinterpret_cast<char *>(&root_hash));
    }
  
  }
  
  CRYPTO_MAKE_HASHABLE(Hash)
  