projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 20effc67 TL |
1 | // |
| 2 | // is_applicable_property.hpp | |
| 3 | // ~~~~~~~~~~~~~~~~~~~~~~~~~~ | |
| 4 | // | |
| 1e59de90 | 5 | // Copyright (c) 2003-2022 Christopher M. Kohlhoff (chris at kohlhoff dot com) |
| 20effc67 TL |
6 | // |
| 7 | // Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 8 | // file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 9 | // | |
| 10 | ||
| 11 | #ifndef BOOST_ASIO_IS_APPLICABLE_PROPERTY_HPP | |
| 12 | #define BOOST_ASIO_IS_APPLICABLE_PROPERTY_HPP | |
| 13 | ||
| 14 | #if defined(_MSC_VER) && (_MSC_VER >= 1200) | |
| 15 | # pragma once | |
| 16 | #endif // defined(_MSC_VER) && (_MSC_VER >= 1200) | |
| 17 | ||
| 18 | #include <boost/asio/detail/config.hpp> | |
| 19 | #include <boost/asio/detail/type_traits.hpp> | |
| 20 | ||
| 21 | namespace boost { | |
| 22 | namespace asio { | |
| 23 | namespace detail { | |
| 24 | ||
| 25 | template <typename T, typename Property, typename = void> | |
| 26 | struct is_applicable_property_trait : false_type | |
| 27 | { | |
| 28 | }; | |
| 29 | ||
| 30 | #if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) | |
| 31 | ||
| 32 | template <typename T, typename Property> | |
| 33 | struct is_applicable_property_trait<T, Property, | |
| 34 | typename void_type< | |
| 35 | typename enable_if< | |
| 36 | !!Property::template is_applicable_property_v<T> | |
| 37 | >::type | |
| 38 | >::type> : true_type | |
| 39 | { | |
| 40 | }; | |
| 41 | ||
| 42 | #endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) | |
| 43 | ||
| 44 | } // namespace detail | |
| 45 | ||
| 46 | template <typename T, typename Property, typename = void> | |
| 47 | struct is_applicable_property : | |
| 48 | detail::is_applicable_property_trait<T, Property> | |
| 49 | { | |
| 50 | }; | |
| 51 | ||
| 52 | #if defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) | |
| 53 | ||
| 54 | template <typename T, typename Property> | |
| 55 | BOOST_ASIO_CONSTEXPR const bool is_applicable_property_v | |
| 56 | = is_applicable_property<T, Property>::value; | |
| 57 | ||
| 58 | #endif // defined(BOOST_ASIO_HAS_VARIABLE_TEMPLATES) | |
| 59 | ||
| 60 | } // namespace asio | |
| 61 | } // namespace boost | |
| 62 | ||
| 63 | #endif // BOOST_ASIO_IS_APPLICABLE_PROPERTY_HPP |