| // |
| // detail/string_view.hpp |
| // ~~~~~~~~~~~~~~~~~~~~~~ |
| // |
| // Copyright (c) 2003-2021 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 |