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// Copyright Daniel Wallin 2006. // 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_PREPROCESSOR_IMPL_FUNCTION_FORWARD_MATCH_HPP #define BOOST_PARAMETER_AUX_PREPROCESSOR_IMPL_FUNCTION_FORWARD_MATCH_HPP #include <boost/parameter/config.hpp> #if !defined(BOOST_NO_SFINAE) && \ !BOOST_WORKAROUND(__BORLANDC__, BOOST_TESTED_AT(0x592)) #include <boost/parameter/aux_/pp_impl/match.hpp> #include <boost/preprocessor/repetition/enum_trailing_params.hpp> // Expands to an extra argument that is well-formed // iff all Args... satisfy the requirements set by params. #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH(params, n, prefix) \ , typename ::boost::parameter::aux::match< \ params BOOST_PP_ENUM_TRAILING_PARAMS(n, prefix) \ >::type = params() /**/ #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH_Z(z, params, n, prefix) \ , typename ::boost::parameter::aux::match< \ params BOOST_PP_ENUM_TRAILING_PARAMS_Z(z, n, prefix) \ >::type = params() /**/ #else // SFINAE/Borland workarounds needed. #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH(params, n, prefix) \ , params = params() /**/ #define BOOST_PARAMETER_FUNCTION_FORWARD_MATCH_Z(z, params, n, prefix) \ , params = params() /**/ #endif #endif // include guard