i2pd-sys 0.0.2

Raw FFI bindings to a minimal C shim over libi2pd (PurpleI2P/i2pd).
Documentation 
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// Copyright (C) 2003, Fernando Luis Cacciola Carballal.
// Copyright (C) 2014, 2015 Andrzej Krzemienski.
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//
// See http://www.boost.org/libs/optional for documentation.
//
// You are welcome to contact the author at:
//  fernando_cacciola@hotmail.com
//
#ifndef BOOST_NONE_17SEP2003_HPP
#define BOOST_NONE_17SEP2003_HPP

#include "boost/config.hpp"
#include "boost/none_t.hpp"

// NOTE: Borland users have to include this header outside any precompiled headers
// (bcc<=5.64 cannot include instance data in a precompiled header)
//  -- * To be verified, now that there's no unnamed namespace

namespace boost {

#ifdef BOOST_OPTIONAL_USE_OLD_DEFINITION_OF_NONE

BOOST_INLINE_VARIABLE none_t BOOST_CONSTEXPR_OR_CONST none = (static_cast<none_t>(0)) ;

#elif defined BOOST_OPTIONAL_USE_SINGLETON_DEFINITION_OF_NONE

namespace detail { namespace optional_detail {

  // the trick here is to make boost::none defined once as a global but in a header file
  template <typename T>
  struct none_instance
  {
    static const T instance;
  };

  template <typename T>
  const T none_instance<T>::instance = T(); // global, but because 'tis a template, no cpp file required

} } // namespace detail::optional_detail


namespace {
  // TU-local
  const none_t& none = detail::optional_detail::none_instance<none_t>::instance;
}

#else

BOOST_INLINE_VARIABLE BOOST_CONSTEXPR_OR_CONST none_t none ((none_t::init_tag()));

#endif // older definitions

} // namespace boost

#endif // header guard