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