| 1 | // Copyright Daniel Wallin 2006. |
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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_AUX_PREPROCESSOR_IMPL_FUNCTION_FORWARD_MATCH_HPP |
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| 7 | #define BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_FUNCTION_FORWARD_MATCH_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 !defined(BOOST_NO_SFINAE) && \ |
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| 12 | !BOOST_WORKAROUND(BOOST_BORLANDC, BOOST_TESTED_AT(0x592)) |
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| 13 | |
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| 14 | #include <boost/parameter/aux_/pp_impl/match.hpp> |
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| 15 | #include <boost/preprocessor/repetition/enum_trailing_params.hpp> |
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| 16 | |
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| 17 | // Expands to an extra argument that is well-formed |
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| 18 | // iff all Args... satisfy the requirements set by params. |
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| 19 | #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH(params, n, prefix) \ |
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| 20 | , typename ::boost::parameter::aux::match< \ |
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| 21 | params BOOST_PP_ENUM_TRAILING_PARAMS(n, prefix) \ |
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| 22 | >::type = params() |
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| 23 | /**/ |
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| 24 | |
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| 25 | #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH_Z(z, params, n, prefix) \ |
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| 26 | , typename ::boost::parameter::aux::match< \ |
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| 27 | params BOOST_PP_ENUM_TRAILING_PARAMS_Z(z, n, prefix) \ |
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| 28 | >::type = params() |
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| 29 | /**/ |
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| 30 | |
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| 31 | #else // SFINAE/Borland workarounds needed. |
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| 32 | |
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| 33 | #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH(params, n, prefix) \ |
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| 34 | , params = params() |
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| 35 | /**/ |
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| 36 | |
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| 37 | #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH_Z(z, params, n, prefix) \ |
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| 38 | , params = params() |
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| 39 | /**/ |
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| 40 | |
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| 41 | #endif |
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| 42 | #endif // include guard |
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| 43 | |
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| 44 | |
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