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- /*=============================================================================
- Copyright (c) 2001-2011 Joel de Guzman
- Copyright (c) 2011 Eric Niebler
- 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)
- ==============================================================================*/
- #if !defined(BOOST_FUSION_SINGLE_VIEW_05052005_0335)
- #define BOOST_FUSION_SINGLE_VIEW_05052005_0335
- #include <boost/fusion/support/config.hpp>
- #include <boost/fusion/support/detail/access.hpp>
- #include <boost/fusion/support/detail/as_fusion_element.hpp>
- #include <boost/fusion/support/sequence_base.hpp>
- #include <boost/fusion/view/single_view/single_view_iterator.hpp>
- #include <boost/fusion/view/single_view/detail/at_impl.hpp>
- #include <boost/fusion/view/single_view/detail/begin_impl.hpp>
- #include <boost/fusion/view/single_view/detail/end_impl.hpp>
- #include <boost/fusion/view/single_view/detail/size_impl.hpp>
- #include <boost/fusion/view/single_view/detail/value_at_impl.hpp>
- #include <boost/mpl/bool.hpp>
- #include <boost/mpl/int.hpp>
- #include <boost/config.hpp>
- #if defined (BOOST_MSVC)
- # pragma warning(push)
- # pragma warning (disable: 4512) // assignment operator could not be generated.
- #endif
- namespace boost { namespace fusion
- {
- struct single_view_tag;
- struct random_access_traversal_tag;
- struct fusion_sequence_tag;
- template <typename T>
- struct single_view : sequence_base<single_view<T> >
- {
- typedef single_view_tag fusion_tag;
- typedef fusion_sequence_tag tag; // this gets picked up by MPL
- typedef random_access_traversal_tag category;
- typedef mpl::true_ is_view;
- typedef mpl::int_<1> size;
- typedef T value_type;
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- single_view()
- : val() {}
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- explicit single_view(typename detail::call_param<T>::type in_val)
- : val(in_val) {}
- value_type val;
- };
-
- template <typename T>
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- inline single_view<typename detail::as_fusion_element<T>::type>
- make_single_view(T const& v)
- {
- return single_view<typename detail::as_fusion_element<T>::type>(v);
- }
- }}
- #if defined (BOOST_MSVC)
- # pragma warning(pop)
- #endif
- #endif
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