| // Copyright Daniel Wallin 2006. |
| // Copyright Cromwell D. Enage 2017. |
| // 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_PP_IMPL_MATCH_HPP |
| #define BOOST_PARAMETER_AUX_PP_IMPL_MATCH_HPP |
| |
| #include <boost/parameter/config.hpp> |
| |
| #if defined(BOOST_PARAMETER_HAS_PERFECT_FORWARDING) |
| |
| namespace boost { namespace parameter { namespace aux { |
| |
| // Recast the ParameterSpec's nested match metafunction |
| // as a free metafunction. |
| // |
| // No more limits set by BOOST_PARAMETER_MAX_ARITY. -- Cromwell D. Enage |
| template <typename Parameters, typename ...Args> |
| struct match : Parameters::BOOST_NESTED_TEMPLATE match<Args...> |
| { |
| }; |
| }}} // namespace boost::parameter::aux |
| |
| #else |
| |
| #include <boost/parameter/aux_/void.hpp> |
| #include <boost/preprocessor/facilities/intercept.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| #include <boost/preprocessor/repetition/enum_trailing_binary_params.hpp> |
| |
| namespace boost { namespace parameter { namespace aux { |
| |
| // Recast the ParameterSpec's nested match metafunction |
| // as a free metafunction. |
| template < |
| typename Parameters |
| BOOST_PP_ENUM_TRAILING_BINARY_PARAMS( |
| BOOST_PARAMETER_MAX_ARITY |
| , typename A |
| , = ::boost::parameter::void_ BOOST_PP_INTERCEPT |
| ) |
| > |
| struct match |
| : Parameters::BOOST_NESTED_TEMPLATE match< |
| BOOST_PP_ENUM_PARAMS(BOOST_PARAMETER_MAX_ARITY, A) |
| > |
| { |
| }; |
| }}} // namespace boost::parameter::aux |
| |
| #endif // BOOST_PARAMETER_HAS_PERFECT_FORWARDING |
| #endif // include guard |
| |