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1 | /*! |
2 | @file | |
3 | Defines `boost::hana::Struct`. | |
4 | ||
b32b8144 | 5 | @copyright Louis Dionne 2013-2017 |
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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_CONCEPT_STRUCT_HPP | |
11 | #define BOOST_HANA_CONCEPT_STRUCT_HPP | |
12 | ||
13 | #include <boost/hana/fwd/concept/struct.hpp> | |
14 | ||
15 | #include <boost/hana/accessors.hpp> | |
16 | #include <boost/hana/config.hpp> | |
17 | #include <boost/hana/core/default.hpp> | |
18 | #include <boost/hana/core/tag_of.hpp> | |
b32b8144 | 19 | #include <boost/hana/detail/integral_constant.hpp> |
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20 | |
21 | ||
22 | BOOST_HANA_NAMESPACE_BEGIN | |
23 | template <typename S> | |
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24 | struct Struct |
25 | : hana::integral_constant<bool, | |
26 | !is_default<accessors_impl<typename tag_of<S>::type>>::value | |
27 | > | |
28 | { }; | |
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29 | BOOST_HANA_NAMESPACE_END |
30 | ||
31 | #endif // !BOOST_HANA_CONCEPT_STRUCT_HPP |