| /*============================================================================= |
| Copyright (c) 2009 Hartmut Kaiser |
| |
| 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_PP_IS_ITERATING |
| |
| #if !defined(BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM) |
| #define BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM |
| |
| #include <climits> |
| #include <boost/preprocessor/cat.hpp> |
| #include <boost/preprocessor/repeat.hpp> |
| #include <boost/preprocessor/iterate.hpp> |
| #include <boost/preprocessor/repetition/enum_params.hpp> |
| #include <boost/preprocessor/repetition/enum_binary_params.hpp> |
| #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp> |
| |
| #define BOOST_PP_ITERATION_PARAMS_1 \ |
| (3, (1, FUSION_MAX_VECTOR_SIZE, \ |
| "boost/fusion/view/nview/detail/nview_impl.hpp")) \ |
| /**/ |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| namespace boost { namespace fusion { namespace result_of |
| { |
| template <typename Sequence |
| , BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(FUSION_MAX_VECTOR_SIZE, int I, LONG_MAX)> |
| struct as_nview |
| { |
| typedef mpl::vector_c< |
| int, BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, I) |
| > index_type; |
| typedef nview<Sequence, index_type> type; |
| }; |
| }}} |
| |
| #include BOOST_PP_ITERATE() |
| |
| #endif |
| |
| /////////////////////////////////////////////////////////////////////////////// |
| // Preprocessor vertical repetition code |
| /////////////////////////////////////////////////////////////////////////////// |
| #else // defined(BOOST_PP_IS_ITERATING) |
| |
| #define N BOOST_PP_ITERATION() |
| |
| #if N < FUSION_MAX_VECTOR_SIZE |
| namespace boost { namespace fusion { namespace result_of |
| { |
| template <typename Sequence, BOOST_PP_ENUM_PARAMS(N, int I)> |
| struct as_nview<Sequence, BOOST_PP_ENUM_PARAMS(N, I)> |
| { |
| typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type; |
| typedef nview<Sequence, index_type> type; |
| }; |
| }}} |
| #endif |
| |
| namespace boost { namespace fusion |
| { |
| template<BOOST_PP_ENUM_PARAMS(N, int I), typename Sequence> |
| inline nview<Sequence, mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> > |
| as_nview(Sequence& s) |
| { |
| typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type; |
| return nview<Sequence, index_type>(s); |
| } |
| |
| }} |
| |
| #undef N |
| |
| #endif |