|
1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 |
- //
- // detail/string_view.hpp
- // ~~~~~~~~~~~~~~~~~~~~~~
- //
- // Copyright (c) 2003-2019 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_DETAIL_STRING_VIEW_HPP
- #define ASIO_DETAIL_STRING_VIEW_HPP
-
- #if defined(_MSC_VER) && (_MSC_VER >= 1200)
- # pragma once
- #endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
- #include "asio/detail/config.hpp"
-
- #if defined(ASIO_HAS_STRING_VIEW)
-
- #if defined(ASIO_HAS_STD_STRING_VIEW)
- # include <string_view>
- #elif defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
- # include <experimental/string_view>
- #else // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
- # error ASIO_HAS_STRING_VIEW is set but no string_view is available
- #endif // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-
- namespace asio {
-
- #if defined(ASIO_HAS_STD_STRING_VIEW)
- using std::basic_string_view;
- using std::string_view;
- #elif defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
- using std::experimental::basic_string_view;
- using std::experimental::string_view;
- #endif // defined(ASIO_HAS_STD_EXPERIMENTAL_STRING_VIEW)
-
- } // namespace asio
-
- # define ASIO_STRING_VIEW_PARAM asio::string_view
- #else // defined(ASIO_HAS_STRING_VIEW)
- # define ASIO_STRING_VIEW_PARAM const std::string&
- #endif // defined(ASIO_HAS_STRING_VIEW)
-
- #endif // ASIO_DETAIL_STRING_VIEW_HPP
|