projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /*! |
| 2 | @file | |
| 3 | Defines operators for Searchables. | |
| 4 | ||
| 5 | @copyright Louis Dionne 2013-2016 | |
| 6 | Distributed under the Boost Software License, Version 1.0. | |
| 7 | (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) | |
| 8 | */ | |
| 9 | ||
| 10 | #ifndef BOOST_HANA_DETAIL_OPERATORS_SEARCHABLE_HPP | |
| 11 | #define BOOST_HANA_DETAIL_OPERATORS_SEARCHABLE_HPP | |
| 12 | ||
| 13 | #include <boost/hana/config.hpp> | |
| 14 | #include <boost/hana/fwd/at_key.hpp> | |
| 15 | ||
| 16 | ||
| 17 | BOOST_HANA_NAMESPACE_BEGIN namespace detail { | |
| 18 | template <typename Derived> | |
| 19 | struct searchable_operators { | |
| 20 | template <typename Key> | |
| 21 | constexpr decltype(auto) operator[](Key&& key) & { | |
| 22 | return hana::at_key(static_cast<Derived&>(*this), | |
| 23 | static_cast<Key&&>(key)); | |
| 24 | } | |
| 25 | ||
| 26 | template <typename Key> | |
| 27 | constexpr decltype(auto) operator[](Key&& key) && { | |
| 28 | return hana::at_key(static_cast<Derived&&>(*this), | |
| 29 | static_cast<Key&&>(key)); | |
| 30 | } | |
| 31 | ||
| 32 | template <typename Key> | |
| 33 | constexpr decltype(auto) operator[](Key&& key) const& { | |
| 34 | return hana::at_key(static_cast<Derived const&>(*this), | |
| 35 | static_cast<Key&&>(key)); | |
| 36 | } | |
| 37 | }; | |
| 38 | } BOOST_HANA_NAMESPACE_END | |
| 39 | ||
| 40 | #endif // !BOOST_HANA_DETAIL_OPERATORS_SEARCHABLE_HPP |