| 12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 | //// detail/string_view.hpp// ~~~~~~~~~~~~~~~~~~~~~~//// Copyright (c) 2003-2020 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 BOOST_ASIO_DETAIL_STRING_VIEW_HPP#define BOOST_ASIO_DETAIL_STRING_VIEW_HPP#if defined(_MSC_VER) && (_MSC_VER >= 1200)# pragma once#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)#include <boost/asio/detail/config.hpp>#if defined(BOOST_ASIO_HAS_STRING_VIEW)#if defined(BOOST_ASIO_HAS_STD_STRING_VIEW)# include <string_view>#elif defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)# include <experimental/string_view>#else // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)# error BOOST_ASIO_HAS_STRING_VIEW is set but no string_view is available#endif // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)namespace boost {namespace asio {#if defined(BOOST_ASIO_HAS_STD_STRING_VIEW)using std::basic_string_view;using std::string_view;#elif defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)using std::experimental::basic_string_view;using std::experimental::string_view;#endif // defined(BOOST_ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)} // namespace asio} // namespace boost# define BOOST_ASIO_STRING_VIEW_PARAM boost::asio::string_view#else // defined(BOOST_ASIO_HAS_STRING_VIEW)# define BOOST_ASIO_STRING_VIEW_PARAM const std::string&#endif // defined(BOOST_ASIO_HAS_STRING_VIEW)#endif // BOOST_ASIO_DETAIL_STRING_VIEW_HPP
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