1 //
2 // detail/null_fenced_block.hpp
3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~
4 //
5 // Copyright (c) 2003-2019 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 
11 #ifndef BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
12 #define BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
13 
14 #if defined(_MSC_VER) && (_MSC_VER >= 1200)
15 # pragma once
16 #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
17 
18 #include <boost/asio/detail/noncopyable.hpp>
19 
20 #include <boost/asio/detail/push_options.hpp>
21 
22 namespace boost {
23 namespace asio {
24 namespace detail {
25 
26 class null_fenced_block
27   : private noncopyable
28 {
29 public:
30   enum half_or_full_t { half, full };
31 
32   // Constructor.
null_fenced_block(half_or_full_t)33   explicit null_fenced_block(half_or_full_t)
34   {
35   }
36 
37   // Destructor.
~null_fenced_block()38   ~null_fenced_block()
39   {
40   }
41 };
42 
43 } // namespace detail
44 } // namespace asio
45 } // namespace boost
46 
47 #include <boost/asio/detail/pop_options.hpp>
48 
49 #endif // BOOST_ASIO_DETAIL_NULL_FENCED_BLOCK_HPP
50