| 1 | // Copyright David Abrahams, Daniel Wallin 2003. |
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| 2 | // Distributed under the Boost Software License, Version 1.0. |
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| 3 | // (See accompanying file LICENSE_1_0.txt or copy at |
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| 4 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 5 | |
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| 6 | #ifndef BOOST_PARAMETER_AUX_PACK_DEDUCED_ITEM_HPP |
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| 7 | #define BOOST_PARAMETER_AUX_PACK_DEDUCED_ITEM_HPP |
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| 8 | |
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| 9 | #include <boost/parameter/aux_/void.hpp> |
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| 10 | |
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| 11 | namespace boost { namespace parameter { namespace aux { |
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| 12 | |
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| 13 | // A typelist that stored deduced parameter specs. |
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| 14 | template < |
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| 15 | typename ParameterSpec |
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| 16 | , typename Tail = ::boost::parameter::void_ |
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| 17 | > |
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| 18 | struct deduced_item |
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| 19 | { |
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| 20 | typedef ParameterSpec spec; |
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| 21 | typedef Tail tail; |
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| 22 | }; |
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| 23 | |
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| 24 | // Evaluate Tail and construct deduced_item list. |
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| 25 | template <typename Spec, typename Tail> |
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| 26 | struct make_deduced_item |
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| 27 | { |
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| 28 | typedef ::boost::parameter::aux |
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| 29 | ::deduced_item<Spec,typename Tail::type> type; |
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| 30 | }; |
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| 31 | }}} // namespace boost::parameter::aux |
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| 32 | |
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| 33 | #endif // include guard |
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| 34 | |
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| 35 | |
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