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							- //
 - // is_write_buffered.hpp
 - // ~~~~~~~~~~~~~~~~~~~~~
 - //
 - // Copyright (c) 2003-2019 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_IS_WRITE_BUFFERED_HPP
 - #define ASIO_IS_WRITE_BUFFERED_HPP
 - 
 - #if defined(_MSC_VER) && (_MSC_VER >= 1200)
 - # pragma once
 - #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
 - 
 - #include "asio/detail/config.hpp"
 - #include "asio/buffered_stream_fwd.hpp"
 - #include "asio/buffered_write_stream_fwd.hpp"
 - 
 - #include "asio/detail/push_options.hpp"
 - 
 - namespace asio {
 - 
 - namespace detail {
 - 
 - template <typename Stream>
 - char is_write_buffered_helper(buffered_stream<Stream>* s);
 - 
 - template <typename Stream>
 - char is_write_buffered_helper(buffered_write_stream<Stream>* s);
 - 
 - struct is_write_buffered_big_type { char data[10]; };
 - is_write_buffered_big_type is_write_buffered_helper(...);
 - 
 - } // namespace detail
 - 
 - /// The is_write_buffered class is a traits class that may be used to determine
 - /// whether a stream type supports buffering of written data.
 - template <typename Stream>
 - class is_write_buffered
 - {
 - public:
 - #if defined(GENERATING_DOCUMENTATION)
 -   /// The value member is true only if the Stream type supports buffering of
 -   /// written data.
 -   static const bool value;
 - #else
 -   ASIO_STATIC_CONSTANT(bool,
 -       value = sizeof(detail::is_write_buffered_helper((Stream*)0)) == 1);
 - #endif
 - };
 - 
 - } // namespace asio
 - 
 - #include "asio/detail/pop_options.hpp"
 - 
 - #endif // ASIO_IS_WRITE_BUFFERED_HPP
 
 
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