| // Copyright David Abrahams, Daniel Wallin 2003. |
| // Distributed under the Boost Software License, Version 1.0. |
| // (See accompanying file LICENSE_1_0.txt or copy at |
| // http://www.boost.org/LICENSE_1_0.txt) |
| |
| #ifndef BOOST_PARAMETER_AUX_PACK_TAG_DEDUCED_HPP |
| #define BOOST_PARAMETER_AUX_PACK_TAG_DEDUCED_HPP |
| |
| #include <boost/parameter/aux_/set.hpp> |
| #include <boost/parameter/aux_/pack/tag_type.hpp> |
| #include <boost/parameter/config.hpp> |
| |
| #if defined(BOOST_PARAMETER_CAN_USE_MP11) |
| #include <boost/mp11/list.hpp> |
| #include <boost/mp11/utility.hpp> |
| #else |
| #include <boost/mpl/pair.hpp> |
| #include <boost/mpl/apply_wrap.hpp> |
| #endif |
| |
| namespace boost { namespace parameter { namespace aux { |
| |
| // Tags a deduced argument Arg with the keyword tag of Spec using TagFn. |
| // Returns the tagged argument and the mpl::set<> UsedArgs with the |
| // tag of Spec inserted. |
| template <typename UsedArgs, typename Spec, typename Arg, typename TagFn> |
| struct tag_deduced |
| { |
| #if defined(BOOST_PARAMETER_CAN_USE_MP11) |
| using type = ::boost::mp11::mp_list< |
| ::boost::mp11::mp_apply_q< |
| TagFn |
| , ::boost::mp11::mp_list< |
| typename ::boost::parameter::aux::tag_type<Spec>::type |
| , Arg |
| > |
| > |
| #else |
| typedef ::boost::mpl::pair< |
| typename ::boost::mpl::apply_wrap2< |
| TagFn |
| , typename ::boost::parameter::aux::tag_type<Spec>::type |
| , Arg |
| >::type |
| #endif // BOOST_PARAMETER_CAN_USE_MP11 |
| , typename ::boost::parameter::aux::insert_< |
| UsedArgs |
| , typename ::boost::parameter::aux::tag_type<Spec>::type |
| >::type |
| #if defined(BOOST_PARAMETER_CAN_USE_MP11) |
| >; |
| #else |
| > type; |
| #endif |
| }; |
| }}} // namespace boost::parameter::aux |
| |
| #endif // include guard |
| |