monero/src/serialization/string.h

// Copyright (c) 2014-2015, The Monero Project
// 
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// Redistribution and use in source and binary forms, with or without modification, are
// permitted provided that the following conditions are met:
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// 1. Redistributions of source code must retain the above copyright notice, this list of
//    conditions and the following disclaimer.
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// 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
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers

#pragma once
#include <memory>
#include "serialization.h"

template <template <bool> class Archive>
inline bool do_serialize(Archive<false>& ar, std::string& str)
{
  size_t size = 0;
  ar.serialize_varint(size);
  if (ar.remaining_bytes() < size)
  {
    ar.stream().setstate(std::ios::failbit);
    return false;
  }

  std::unique_ptr<std::string::value_type[]> buf(new std::string::value_type[size]);
  ar.serialize_blob(buf.get(), size);
  str.erase();
  str.append(buf.get(), size);
  return true;
}


template <template <bool> class Archive>
inline bool do_serialize(Archive<true>& ar, std::string& str)
{
  size_t size = str.size();
  ar.serialize_varint(size);
  ar.serialize_blob(const_cast<std::string::value_type*>(str.c_str()), size);
  return true;
}