null_fenced_block.hpp 1.0 KB

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  1. //
  2. // detail/null_fenced_block.hpp
  3. // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  4. //
  5. // Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com)
  6. //
  7. // Distributed under the Boost Software License, Version 1.0. (See accompanying
  8. // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
  9. //
  10. #ifndef BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
  11. #define BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
  12. #if defined(_MSC_VER) && (_MSC_VER >= 1200)
  13. # pragma once
  14. #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
  15. #include <boost/asio/detail/noncopyable.hpp>
  16. #include <boost/asio/detail/push_options.hpp>
  17. namespace boost {
  18. namespace asio {
  19. namespace detail {
  20. class null_fenced_block
  21. : private noncopyable
  22. {
  23. public:
  24. enum half_or_full_t { half, full };
  25. // Constructor.
  26. explicit null_fenced_block(half_or_full_t)
  27. {
  28. }
  29. // Destructor.
  30. ~null_fenced_block()
  31. {
  32. }
  33. };
  34. } // namespace detail
  35. } // namespace asio
  36. } // namespace boost
  37. #include <boost/asio/detail/pop_options.hpp>
  38. #endif // BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP