| 1 | /*! |
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| 2 | @file |
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| 3 | Documents the `BOOST_HANA_ADAPT_STRUCT` macro. |
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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_FWD_ADAPT_STRUCT_HPP |
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| 11 | #define BOOST_HANA_FWD_ADAPT_STRUCT_HPP |
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| 12 | |
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| 13 | #include <boost/hana/config.hpp> |
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| 14 | |
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| 15 | |
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| 16 | namespace boost { namespace hana { |
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| 17 | // Note: |
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| 18 | // The weird definition as a variable seems to exploit a glitch in Doxygen |
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| 19 | // which makes the macro appear in the related objects of Struct (as we |
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| 20 | // want it to). |
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| 21 | |
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| 22 | //! Defines a model of `Struct` with the given members. |
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| 23 | //! @ingroup group-Struct |
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| 24 | //! |
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| 25 | //! Using this macro at _global scope_ will define a model of the `Struct` |
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| 26 | //! concept for the given type. This can be used to easily adapt existing |
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| 27 | //! user-defined types in a ad-hoc manner. Unlike the |
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| 28 | //! `BOOST_HANA_DEFINE_STRUCT` macro, this macro does not |
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| 29 | //! require the types of the members to be specified. |
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| 30 | //! |
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| 31 | //! @note |
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| 32 | //! This macro only works if the tag of the user-defined type `T` is `T` |
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| 33 | //! itself. This is the case unless you specifically asked for something |
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| 34 | //! different; see `tag_of`'s documentation. |
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| 35 | //! |
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| 36 | //! |
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| 37 | //! Example |
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| 38 | //! ------- |
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| 39 | //! @include example/adapt_struct.cpp |
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| 40 | #ifdef BOOST_HANA_DOXYGEN_INVOKED |
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| 41 | auto BOOST_HANA_ADAPT_STRUCT(...) = ; |
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| 42 | #define BOOST_HANA_ADAPT_STRUCT(Name, ...) see documentation |
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| 43 | #else |
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| 44 | // defined in <boost/hana/adapt_struct.hpp> |
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| 45 | #endif |
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| 46 | }} // end namespace boost::hana |
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| 47 | |
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| 48 | #endif // !BOOST_HANA_FWD_ADAPT_STRUCT_HPP |
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| 49 | |
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