boost/url/optional.hpp

0001 //
0002 // Copyright (c) 2022 Vinnie Falco (vinnie.falco@gmail.com)
0003 //
0004 // Distributed under the Boost Software License, Version 1.0. (See accompanying
0005 // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
0006 //
0007 // Official repository: https://github.com/boostorg/url
0008 //
0009
0010 #ifndef BOOST_URL_OPTIONAL_HPP
0011 #define BOOST_URL_OPTIONAL_HPP
0012
0013 #include <boost/url/detail/config.hpp>
0014 #include <boost/optional.hpp>
0015
0016 namespace boost {
0017 namespace urls {
0018
0019 #ifndef BOOST_URL_DOCS
0020 /** The type of optional used by the library
0021
0022     @warning This alias is no longer supported and
0023     should not be used in new code. Please use
0024     `boost::optional` instead.
0025
0026     This alias is included for backwards
0027     compatibility with earlier versions of the
0028     library.
0029
0030     However, it will be removed in future releases,
0031     and using it in new code is not recommended.
0032
0033     Please use the updated version instead to
0034     ensure compatibility with future versions of
0035     the library.
0036
0037 */
0038 template<class T>
0039 using optional
0040     BOOST_URL_DEPRECATED("Use boost::optional<T> instead") =
0041     boost::optional<T>;
0042 #else
0043 /** The type of optional used by the library
0044
0045     @warning This alias is no longer supported and
0046     should not be used in new code. Please use
0047     `boost::optional` instead.
0048
0049     This alias is included for backwards
0050     compatibility with earlier versions of the
0051     library.
0052
0053     However, it will be removed in future releases,
0054     and using it in new code is not recommended.
0055
0056     Please use the updated version instead to
0057     ensure compatibility with future versions of
0058     the library.
0059
0060 */
0061 template<class T>
0062 using optional = boost::optional<T>;
0063 #endif
0064
0065 } // urls
0066 } // boost
0067
0068 #endif