cstddef.hpp 816 B

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  1. //
  2. // detail/cstddef.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_CSTDDEF_HPP
  11. #define BOOST_ASIO_DETAIL_CSTDDEF_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/config.hpp>
  16. #include <cstddef>
  17. namespace boost {
  18. namespace asio {
  19. #if defined(BOOST_ASIO_HAS_NULLPTR)
  20. using std::nullptr_t;
  21. #else // defined(BOOST_ASIO_HAS_NULLPTR)
  22. struct nullptr_t {};
  23. #endif // defined(BOOST_ASIO_HAS_NULLPTR)
  24. } // namespace asio
  25. } // namespace boost
  26. #endif // BOOST_ASIO_DETAIL_CSTDDEF_HPP