Chris@16: /*=============================================================================
Chris@16:     Copyright (c) 2009 Hartmut Kaiser
Chris@16: 
Chris@16:     Distributed under the Boost Software License, Version 1.0. (See accompanying
Chris@16:     file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
Chris@16: ==============================================================================*/
Chris@16: 
Chris@16: #ifndef BOOST_PP_IS_ITERATING
Chris@16: 
Chris@16: #if !defined(BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM)
Chris@16: #define BOOST_FUSION_NVIEW_IMPL_SEP_23_2009_1017PM
Chris@16: 
Chris@16: #include <climits>
Chris@16: #include <boost/preprocessor/cat.hpp>
Chris@16: #include <boost/preprocessor/repeat.hpp>
Chris@16: #include <boost/preprocessor/iterate.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_params.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_binary_params.hpp>
Chris@16: #include <boost/preprocessor/repetition/enum_params_with_a_default.hpp>
Chris@16: 
Chris@16: #define BOOST_PP_ITERATION_PARAMS_1                                           \
Chris@16:     (3, (1, FUSION_MAX_VECTOR_SIZE,                                           \
Chris@16:     "boost/fusion/view/nview/detail/nview_impl.hpp"))                         \
Chris@16:     /**/
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: namespace boost { namespace fusion { namespace result_of
Chris@16: {
Chris@16:     template <typename Sequence
Chris@16:       , BOOST_PP_ENUM_PARAMS_WITH_A_DEFAULT(FUSION_MAX_VECTOR_SIZE, int I, INT_MAX)>
Chris@16:     struct as_nview
Chris@16:     {
Chris@16:         typedef mpl::vector_c<
Chris@16:             int, BOOST_PP_ENUM_PARAMS(FUSION_MAX_VECTOR_SIZE, I)
Chris@16:         > index_type;
Chris@16:         typedef nview<Sequence, index_type> type;
Chris@16:     };
Chris@16: }}}
Chris@16: 
Chris@16: #include BOOST_PP_ITERATE()
Chris@16: 
Chris@16: #endif
Chris@16: 
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: //  Preprocessor vertical repetition code
Chris@16: ///////////////////////////////////////////////////////////////////////////////
Chris@16: #else // defined(BOOST_PP_IS_ITERATING)
Chris@16: 
Chris@16: #define N BOOST_PP_ITERATION()
Chris@16: 
Chris@16: #if N < FUSION_MAX_VECTOR_SIZE
Chris@16: namespace boost { namespace fusion { namespace result_of
Chris@16: {
Chris@16:     template <typename Sequence, BOOST_PP_ENUM_PARAMS(N, int I)>
Chris@16:     struct as_nview<Sequence, BOOST_PP_ENUM_PARAMS(N, I)>
Chris@16:     {
Chris@16:         typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type;
Chris@16:         typedef nview<Sequence, index_type> type;
Chris@16:     };
Chris@16: }}}
Chris@16: #endif
Chris@16: 
Chris@16: namespace boost { namespace fusion
Chris@16: {
Chris@16:     template<BOOST_PP_ENUM_PARAMS(N, int I), typename Sequence>
Chris@101:     BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
Chris@16:     inline nview<Sequence, mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> >
Chris@16:     as_nview(Sequence& s)
Chris@16:     {
Chris@16:         typedef mpl::vector_c<int, BOOST_PP_ENUM_PARAMS(N, I)> index_type;
Chris@16:         return nview<Sequence, index_type>(s);
Chris@16:     }
Chris@16: 
Chris@16: }}
Chris@16: 
Chris@16: #undef N
Chris@16: 
Chris@16: #endif