1 // 2 // detail/null_fenced_block.hpp 3 // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 4 // 5 // Copyright (c) 2003-2015 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 ASIO_DETAIL_NULL_FENCED_BLOCK_HPP 12 #define ASIO_DETAIL_NULL_FENCED_BLOCK_HPP 13 14 15 #include "asio/detail/push_options.hpp" 16 17 namespace asio { 18 namespace detail { 19 20 class null_fenced_block 21 : private noncopyable 22 { 23 public: 24 enum half_or_full_t { half, full }; 25 26 // Constructor. null_fenced_block(half_or_full_t)27 explicit null_fenced_block(half_or_full_t) 28 { 29 } 30 31 // Destructor. ~null_fenced_block()32 ~null_fenced_block() 33 { 34 } 35 }; 36 37 } // namespace detail 38 } // namespace asio 39 40 #include "asio/detail/pop_options.hpp" 41 42 #endif // ASIO_DETAIL_NULL_FENCED_BLOCK_HPP 43