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// Copyright (c) 2014-2015, The Monero Project
// 
// All rights reserved.
// 
// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
// 
// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
// 
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
//    of conditions and the following disclaimer in the documentation and/or other
//    materials provided with the distribution.
// 
// 3. Neither the name of the copyright holder nor the names of its contributors may be
//    used to endorse or promote products derived from this software without specific
//    prior written permission.
// 
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// 
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers

#pragma once

#include "cryptonote_basic.h"
#include "crypto/crypto.h"
#include "crypto/hash.h"


namespace cryptonote {
  /************************************************************************/
  /*                                                                      */
  /************************************************************************/
  template<class t_array>
  struct array_hasher: std::unary_function<t_array&, std::size_t>
  {
    std::size_t operator()(const t_array& val) const
    {
      return boost::hash_range(&val.data[0], &val.data[sizeof(val.data)]);
    }
  };


#pragma pack(push, 1)
  struct public_address_outer_blob
  {
    uint8_t m_ver;
    account_public_address m_address;
    uint8_t check_sum;
  };
#pragma pack (pop)


  /************************************************************************/
  /* Cryptonote helper functions                                          */
  /************************************************************************/
  size_t get_max_block_size();
  size_t get_max_tx_size();
  bool get_block_reward(size_t median_size, size_t current_block_size, uint64_t already_generated_coins, uint64_t &reward);
  uint8_t get_account_address_checksum(const public_address_outer_blob& bl);

  std::string get_account_address_as_str(
      bool testnet
    , const account_public_address& adr
    );

  bool get_account_address_from_str(
      account_public_address& adr
    , bool testnet
    , const std::string& str
    );

  bool is_coinbase(const transaction& tx);

  bool operator ==(const cryptonote::transaction& a, const cryptonote::transaction& b);
  bool operator ==(const cryptonote::block& a, const cryptonote::block& b);
}

template <class T>
std::ostream &print256(std::ostream &o, const T &v) {
  return o << "<" << epee::string_tools::pod_to_hex(v) << ">";
}

bool parse_hash256(const std::string str_hash, crypto::hash& hash);

namespace crypto {
  inline std::ostream &operator <<(std::ostream &o, const crypto::public_key &v) { return print256(o, v); }
  inline std::ostream &operator <<(std::ostream &o, const crypto::secret_key &v) { return print256(o, v); }
  inline std::ostream &operator <<(std::ostream &o, const crypto::key_derivation &v) { return print256(o, v); }
  inline std::ostream &operator <<(std::ostream &o, const crypto::key_image &v) { return print256(o, v); }
  inline std::ostream &operator <<(std::ostream &o, const crypto::signature &v) { return print256(o, v); }
  inline std::ostream &operator <<(std::ostream &o, const crypto::hash &v) { return print256(o, v); }
}