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50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
//
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// detail/string_view.hpp
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// ~~~~~~~~~~~~~~~~~~~~~~
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//
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// Copyright (c) 2003-2019 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 BOOST_ASIO_DETAIL_STRING_VIEW_HPP
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#define BOOST_ASIO_DETAIL_STRING_VIEW_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 <boost/asio/detail/config.hpp>
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#if defined(BOOST_ASIO_HAS_STRING_VIEW)
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#if defined(BOOST_ASIO_HAS_STD_STRING_VIEW)
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# include <string_view>
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#elif defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
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# include <experimental/string_view>
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#else // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
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# error BOOST_ASIO_HAS_STRING_VIEW is set but no string_view is available
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#endif // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
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namespace boost {
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namespace asio {
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#if defined(BOOST_ASIO_HAS_STD_STRING_VIEW)
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using std::basic_string_view;
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using std::string_view;
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#elif defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
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using std::experimental::basic_string_view;
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using std::experimental::string_view;
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#endif // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
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} // namespace asio
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} // namespace boost
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# define BOOST_ASIO_STRING_VIEW_PARAM boost::asio::string_view
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#else // defined(BOOST_ASIO_HAS_STRING_VIEW)
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# define BOOST_ASIO_STRING_VIEW_PARAM const std::string&
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#endif // defined(BOOST_ASIO_HAS_STRING_VIEW)
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#endif // BOOST_ASIO_DETAIL_STRING_VIEW_HPP
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