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- // 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
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