81 lines
1.8 KiB
C++
81 lines
1.8 KiB
C++
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//
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// placeholders.hpp
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// ~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2006 Christopher M. Kohlhoff (chris at kohlhoff dot com)
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//
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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//
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#ifndef ASIO_ARG_HPP
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#define ASIO_ARG_HPP
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#if defined(_MSC_VER) && (_MSC_VER >= 1200)
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# pragma once
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#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
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#include "asio/detail/push_options.hpp"
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#include "asio/detail/push_options.hpp"
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#include <boost/bind/arg.hpp>
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#include "asio/detail/pop_options.hpp"
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namespace asio {
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namespace placeholders {
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namespace {
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#if defined(__BORLANDC__)
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static inline boost::arg<1> error()
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{
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return boost::arg<1>();
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}
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static inline boost::arg<2> bytes_transferred()
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{
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return boost::arg<2>();
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}
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static inline boost::arg<2> iterator()
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{
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return boost::arg<2>();
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}
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#elif defined(_MSC_VER) && (_MSC_VER < 1400)
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static boost::arg<1> error;
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static boost::arg<2> bytes_transferred;
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static boost::arg<2> iterator;
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#else
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/// An argument placeholder, for use with @ref boost_bind, that corresponds to
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/// the error argument of a handler for any of the asynchronous functions.
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boost::arg<1> error;
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/// An argument placeholder, for use with @ref boost_bind, that corresponds to
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/// the bytes_transferred argument of a handler for asynchronous functions such
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/// as asio::basic_stream_socket::async_write_some or
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/// asio::async_write.
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boost::arg<2> bytes_transferred;
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/// An argument placeholder, for use with @ref boost_bind, that corresponds to
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/// the iterator argument of a handler for asynchronous functions such as
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/// asio::basic_resolver::resolve.
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boost::arg<2> iterator;
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#endif
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} // namespace
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} // namespace placeholders
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} // namespace asio
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#include "asio/detail/pop_options.hpp"
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#endif // ASIO_ARG_HPP
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