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authorMatthias P. Braendli <matthias.braendli@mpb.li>2018-08-06 10:35:22 +0200
committerMatthias P. Braendli <matthias.braendli@mpb.li>2018-08-06 10:35:22 +0200
commite95946831f8ef53d29590735a2df661385edb008 (patch)
treee179b6beed4a5a0dd108f078a529ae9f8107ed8e /lib/asio/is_read_buffered.hpp
parent8bc01ff60629d9096f4b57cfb574ace672a6ef0e (diff)
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Replace boost by the standalone asio library
Diffstat (limited to 'lib/asio/is_read_buffered.hpp')
-rw-r--r--lib/asio/is_read_buffered.hpp59
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diff --git a/lib/asio/is_read_buffered.hpp b/lib/asio/is_read_buffered.hpp
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+//
+// is_read_buffered.hpp
+// ~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2018 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_READ_BUFFERED_HPP
+#define ASIO_IS_READ_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_read_stream_fwd.hpp"
+#include "asio/buffered_stream_fwd.hpp"
+
+#include "asio/detail/push_options.hpp"
+
+namespace asio {
+
+namespace detail {
+
+template <typename Stream>
+char is_read_buffered_helper(buffered_stream<Stream>* s);
+
+template <typename Stream>
+char is_read_buffered_helper(buffered_read_stream<Stream>* s);
+
+struct is_read_buffered_big_type { char data[10]; };
+is_read_buffered_big_type is_read_buffered_helper(...);
+
+} // namespace detail
+
+/// The is_read_buffered class is a traits class that may be used to determine
+/// whether a stream type supports buffering of read data.
+template <typename Stream>
+class is_read_buffered
+{
+public:
+#if defined(GENERATING_DOCUMENTATION)
+ /// The value member is true only if the Stream type supports buffering of
+ /// read data.
+ static const bool value;
+#else
+ ASIO_STATIC_CONSTANT(bool,
+ value = sizeof(detail::is_read_buffered_helper((Stream*)0)) == 1);
+#endif
+};
+
+} // namespace asio
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // ASIO_IS_READ_BUFFERED_HPP