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Diffstat (limited to 'boost/fusion/view/nview/detail/cpp03/nview_impl.hpp')
-rw-r--r-- | boost/fusion/view/nview/detail/cpp03/nview_impl.hpp | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp b/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp new file mode 100644 index 0000000000..08c6c9d738 --- /dev/null +++ b/boost/fusion/view/nview/detail/cpp03/nview_impl.hpp @@ -0,0 +1,78 @@ +/*============================================================================= + 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/cpp03/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, INT_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> + BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED + 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 |