// Copyright David Abrahams 2005. 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_MATCH_DWA2005714_HPP

# define BOOST_PARAMETER_MATCH_DWA2005714_HPP

# include <boost/detail/workaround.hpp>

# include <boost/preprocessor/seq/enum.hpp>

# if BOOST_WORKAROUND(__MWERKS__, <= 0x3003)

// Temporary version of BOOST_PP_SEQ_ENUM until Paul M. integrates the workaround.

#  define BOOST_PARAMETER_SEQ_ENUM_I(size,seq) BOOST_PP_CAT(BOOST_PP_SEQ_ENUM_, size) seq

#  define BOOST_PARAMETER_SEQ_ENUM(seq) BOOST_PARAMETER_SEQ_ENUM_I(BOOST_PP_SEQ_SIZE(seq), seq)

# else

#  define BOOST_PARAMETER_SEQ_ENUM(seq) BOOST_PP_SEQ_ENUM(seq)

# endif 

# if BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x564))

#  include <boost/parameter/config.hpp>

#  include <boost/parameter/aux_/void.hpp>

#  include <boost/preprocessor/arithmetic/sub.hpp>

#  include <boost/preprocessor/facilities/intercept.hpp>

#  include <boost/preprocessor/repetition/enum_trailing_params.hpp>

#  define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)              \

        BOOST_PP_ENUM_TRAILING_PARAMS(                          \

            BOOST_PP_SUB(                                       \

                BOOST_PARAMETER_MAX_ARITY                       \

              , BOOST_PP_SEQ_SIZE(ArgTypes)                     \

            )                                                   \

          , ::boost::parameter::void_ BOOST_PP_INTERCEPT   \

        )

# else

#  define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)

# endif 

//

// Generates, e.g.

//

//    typename dfs_params::match<A1,A2>::type name = dfs_params()

//

// with workarounds for Borland compatibility.

//

# define BOOST_PARAMETER_MATCH(ParameterSpec, ArgTypes, name)   \

    typename ParameterSpec ::match<                             \

        BOOST_PARAMETER_SEQ_ENUM(ArgTypes)                      \

        BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes)                \

    >::type name = ParameterSpec ()

#endif // BOOST_PARAMETER_MATCH_DWA2005714_HPP