| 1 | /*! |
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| 2 | @file |
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| 3 | Defines `boost::hana::detail::create`. |
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| 4 | |
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| 5 | Copyright Louis Dionne 2013-2022 |
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| 6 | Distributed under the Boost Software License, Version 1.0. |
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| 7 | (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt) |
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| 8 | */ |
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| 9 | |
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| 10 | #ifndef BOOST_HANA_DETAIL_CREATE_HPP |
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| 11 | #define BOOST_HANA_DETAIL_CREATE_HPP |
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| 12 | |
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| 13 | #include <boost/hana/config.hpp> |
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| 14 | #include <boost/hana/detail/decay.hpp> |
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| 15 | |
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| 16 | |
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| 17 | namespace boost { namespace hana { namespace detail { |
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| 18 | //! @ingroup group-details |
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| 19 | //! Implementation of the generic `std::make_xxx` pattern for arbitrary |
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| 20 | //! `xxx`s. |
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| 21 | template <template <typename ...> class T> |
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| 22 | struct create { |
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| 23 | template <typename ...X> |
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| 24 | constexpr T<typename detail::decay<X>::type...> |
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| 25 | operator()(X&& ...x) const { |
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| 26 | return T<typename detail::decay<X>::type...>{ |
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| 27 | static_cast<X&&>(x)... |
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| 28 | }; |
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| 29 | } |
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| 30 | }; |
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| 31 | } }} // end namespace boost::hana |
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| 32 | |
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| 33 | #endif // !BOOST_HANA_DETAIL_CREATE_HPP |
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| 34 | |
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