// // detail/null_fenced_block.hpp // ~~~~~~~~~~~~~~~~~~~~~~~~~~~~ // // Copyright (c) 2003-2021 Christopher M. Kohlhoff (chris at kohlhoff dot com) // // Distributed under the Boost Software License, Version 1.0. (See accompanying // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) // #ifndef ASIO_DETAIL_NULL_FENCED_BLOCK_HPP #define ASIO_DETAIL_NULL_FENCED_BLOCK_HPP #if defined(_MSC_VER) && (_MSC_VER >= 1200) # pragma once #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) #include "asio/detail/noncopyable.hpp" #include "asio/detail/push_options.hpp" namespace asio { namespace detail { class null_fenced_block : private noncopyable { public: enum half_or_full_t { half, full }; // Constructor. explicit null_fenced_block(half_or_full_t) { } // Destructor. ~null_fenced_block() { } }; } // namespace detail } // namespace asio #include "asio/detail/pop_options.hpp" #endif // ASIO_DETAIL_NULL_FENCED_BLOCK_HPP