| 1 | // Copyright David Abrahams 2005. |
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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_MATCH_DWA2005714_HPP |
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| 7 | #define BOOST_PARAMETER_MATCH_DWA2005714_HPP |
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| 8 | |
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| 9 | #include <boost/parameter/config.hpp> |
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| 10 | |
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| 11 | #if BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x564)) |
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| 12 | #include <boost/parameter/aux_/void.hpp> |
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| 13 | #include <boost/preprocessor/arithmetic/sub.hpp> |
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| 14 | #include <boost/preprocessor/facilities/intercept.hpp> |
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| 15 | #include <boost/preprocessor/repetition/enum_trailing_params.hpp> |
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| 16 | #include <boost/preprocessor/seq/size.hpp> |
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| 17 | |
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| 18 | #define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes) \ |
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| 19 | BOOST_PP_ENUM_TRAILING_PARAMS( \ |
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| 20 | BOOST_PP_SUB( \ |
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| 21 | BOOST_PARAMETER_MAX_ARITY \ |
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| 22 | , BOOST_PP_SEQ_SIZE(ArgTypes) \ |
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| 23 | ) \ |
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| 24 | , ::boost::parameter::void_ BOOST_PP_INTERCEPT \ |
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| 25 | ) |
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| 26 | /**/ |
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| 27 | #else |
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| 28 | #define BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes) |
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| 29 | #endif |
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| 30 | |
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| 31 | #include <boost/parameter/aux_/preprocessor/seq_enum.hpp> |
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| 32 | |
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| 33 | // |
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| 34 | // Generates, e.g. |
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| 35 | // |
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| 36 | // typename dfs_params::match<A1,A2>::type name = dfs_params() |
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| 37 | // |
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| 38 | // with workarounds for Borland compatibility. |
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| 39 | // |
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| 40 | #define BOOST_PARAMETER_MATCH(ParameterSpec, ArgTypes, name) \ |
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| 41 | typename ParameterSpec::match< \ |
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| 42 | BOOST_PARAMETER_SEQ_ENUM(ArgTypes) \ |
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| 43 | BOOST_PARAMETER_MATCH_DEFAULTS(ArgTypes) \ |
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| 44 | >::type name = ParameterSpec() |
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| 45 | /**/ |
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| 46 | |
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| 47 | #endif // include guard |
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| 48 | |
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| 49 | |
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