1 #ifndef BOOST_PP_IS_ITERATING 2 // Copyright David Abrahams 2002. 3 // Distributed under the Boost Software License, Version 1.0. (See 4 // accompanying file LICENSE_1_0.txt or copy at 5 // http://www.boost.org/LICENSE_1_0.txt) 6 # ifndef TYPE_LIST_IMPL_DWA2002913_HPP 7 # define TYPE_LIST_IMPL_DWA2002913_HPP 8 9 # include <boost/python/detail/type_list.hpp> 10 11 # include <boost/preprocessor/enum_params.hpp> 12 # include <boost/preprocessor/enum_params_with_a_default.hpp> 13 # include <boost/preprocessor/repetition/enum.hpp> 14 # include <boost/preprocessor/comma_if.hpp> 15 # include <boost/preprocessor/arithmetic/sub.hpp> 16 # include <boost/preprocessor/iterate.hpp> 17 # include <boost/preprocessor/repetition/enum_trailing.hpp> 18 19 namespace boost { namespace python { namespace detail { 20 21 template <BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(BOOST_PYTHON_LIST_SIZE, class T, mpl::void_)> 22 struct type_list 23 : BOOST_PP_CAT(mpl::vector,BOOST_PYTHON_LIST_SIZE)<BOOST_PP_ENUM_PARAMS_Z(1, BOOST_PYTHON_LIST_SIZE, T)> 24 { 25 }; 26 27 # define BOOST_PP_ITERATION_PARAMS_1 \ 28 (3, (0, BOOST_PP_DEC(BOOST_PYTHON_LIST_SIZE), <boost/python/detail/type_list_impl.hpp>)) 29 # include BOOST_PP_ITERATE() 30 31 32 }}} // namespace boost::python::detail 33 34 # endif // TYPE_LIST_IMPL_DWA2002913_HPP 35 36 #else // BOOST_PP_IS_ITERATING 37 38 # define N BOOST_PP_ITERATION() 39 # define BOOST_PYTHON_VOID_ARGS BOOST_PP_SUB_D(1,BOOST_PYTHON_LIST_SIZE,N) 40 41 template < 42 BOOST_PP_ENUM_PARAMS_Z(1, N, class T) 43 > 44 struct type_list< 45 BOOST_PP_ENUM_PARAMS_Z(1, N, T) 46 BOOST_PP_COMMA_IF(N) 47 BOOST_PP_ENUM( 48 BOOST_PYTHON_VOID_ARGS, BOOST_PYTHON_FIXED, mpl::void_) 49 > 50 : BOOST_PP_CAT(mpl::vector,N)<BOOST_PP_ENUM_PARAMS_Z(1, N, T)> 51 { 52 }; 53 54 # undef BOOST_PYTHON_VOID_ARGS 55 # undef N 56 57 #endif // BOOST_PP_IS_ITERATING 58