asio/detail/null_fenced_block.hpp

0001 //
0002 // detail/null_fenced_block.hpp
0003 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0004 //
0005 // Copyright (c) 2003-2023 Christopher M. Kohlhoff (chris at kohlhoff dot com)
0006 //
0007 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0008 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0009 //
0010
0011 #ifndef BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
0012 #define BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
0013
0014 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
0015 # pragma once
0016 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
0017
0018 #include <boost/asio/detail/noncopyable.hpp>
0019
0020 #include <boost/asio/detail/push_options.hpp>
0021
0022 namespace boost {
0023 namespace asio {
0024 namespace detail {
0025
0026 class null_fenced_block
0027   : private noncopyable
0028 {
0029 public:
0030   enum half_or_full_t { half, full };
0031
0032   // Constructor.
0033   explicit null_fenced_block(half_or_full_t)
0034   {
0035   }
0036
0037   // Destructor.
0038   ~null_fenced_block()
0039   {
0040   }
0041 };
0042
0043 } // namespace detail
0044 } // namespace asio
0045 } // namespace boost
0046
0047 #include <boost/asio/detail/pop_options.hpp>
0048
0049 #endif // BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP