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123 lines
5.2 KiB
123 lines
5.2 KiB
/*=============================================================================
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Copyright (c) 2001-2011 Joel de Guzman
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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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#if !defined(FUSION_TRANSFORM_VIEW_07162005_1037)
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#define FUSION_TRANSFORM_VIEW_07162005_1037
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#include <boost/fusion/support/config.hpp>
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#include <boost/static_assert.hpp>
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#include <boost/fusion/support/detail/access.hpp>
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#include <boost/fusion/support/is_view.hpp>
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#include <boost/fusion/support/category_of.hpp>
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#include <boost/fusion/view/transform_view/transform_view_iterator.hpp>
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#include <boost/fusion/view/transform_view/transform_view_fwd.hpp>
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#include <boost/fusion/view/transform_view/detail/begin_impl.hpp>
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#include <boost/fusion/view/transform_view/detail/end_impl.hpp>
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#include <boost/fusion/view/transform_view/detail/at_impl.hpp>
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#include <boost/fusion/view/transform_view/detail/value_at_impl.hpp>
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#include <boost/fusion/view/detail/strictest_traversal.hpp>
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#include <boost/fusion/container/vector/vector10.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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#include <boost/fusion/support/sequence_base.hpp>
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#include <boost/fusion/sequence/intrinsic/begin.hpp>
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#include <boost/fusion/sequence/intrinsic/end.hpp>
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#include <boost/fusion/sequence/intrinsic/size.hpp>
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#include <boost/mpl/bool.hpp>
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namespace boost { namespace fusion
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{
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struct void_;
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struct transform_view_tag;
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struct transform_view2_tag;
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struct fusion_sequence_tag;
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// Binary Version
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template <typename Sequence1, typename Sequence2, typename F>
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struct transform_view : sequence_base<transform_view<Sequence1, Sequence2, F> >
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{
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BOOST_STATIC_ASSERT(result_of::size<Sequence1>::value == result_of::size<Sequence2>::value);
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typedef transform_view2_tag fusion_tag;
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typedef fusion_sequence_tag tag; // this gets picked up by MPL
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typedef mpl::true_ is_view;
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typedef typename traits::category_of<Sequence1>::type category1;
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typedef typename traits::category_of<Sequence2>::type category2;
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typedef typename detail::strictest_traversal<
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fusion::vector2<Sequence1, Sequence2> >::type category;
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typedef typename result_of::begin<Sequence1>::type first1_type;
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typedef typename result_of::begin<Sequence2>::type first2_type;
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typedef typename result_of::end<Sequence1>::type last1_type;
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typedef typename result_of::end<Sequence2>::type last2_type;
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typedef typename result_of::size<Sequence1>::type size;
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typedef Sequence1 sequence1_type;
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typedef Sequence2 sequence2_type;
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typedef F transform_type;
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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transform_view(Sequence1& in_seq1, Sequence2& in_seq2, F const& binop)
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: f(binop)
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, seq1(in_seq1)
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, seq2(in_seq2)
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{}
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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first1_type first1() const { return fusion::begin(seq1); }
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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first2_type first2() const { return fusion::begin(seq2); }
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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last1_type last1() const { return fusion::end(seq1); }
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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last2_type last2() const { return fusion::end(seq2); }
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transform_type f;
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typename mpl::if_<traits::is_view<Sequence1>, Sequence1, Sequence1&>::type seq1;
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typename mpl::if_<traits::is_view<Sequence2>, Sequence2, Sequence2&>::type seq2;
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// silence MSVC warning C4512: assignment operator could not be generated
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BOOST_DELETED_FUNCTION(transform_view& operator= (transform_view const&))
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};
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// Unary Version
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template <typename Sequence, typename F>
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#if defined(BOOST_NO_PARTIAL_SPECIALIZATION_IMPLICIT_DEFAULT_ARGS)
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struct transform_view<Sequence, F, void_> : sequence_base<transform_view<Sequence, F, void_> >
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#else
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struct transform_view<Sequence, F> : sequence_base<transform_view<Sequence, F> >
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#endif
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{
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typedef transform_view_tag fusion_tag;
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typedef fusion_sequence_tag tag; // this gets picked up by MPL
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typedef mpl::true_ is_view;
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typedef typename traits::category_of<Sequence>::type category;
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typedef typename result_of::begin<Sequence>::type first_type;
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typedef typename result_of::end<Sequence>::type last_type;
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typedef typename result_of::size<Sequence>::type size;
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typedef Sequence sequence_type;
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typedef F transform_type;
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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transform_view(Sequence& in_seq, F const& in_f)
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: seq(in_seq)
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, f(in_f)
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{}
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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first_type first() const { return fusion::begin(seq); }
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BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
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last_type last() const { return fusion::end(seq); }
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typename mpl::if_<traits::is_view<Sequence>, Sequence, Sequence&>::type seq;
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transform_type f;
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// silence MSVC warning C4512: assignment operator could not be generated
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BOOST_DELETED_FUNCTION(transform_view& operator= (transform_view const&))
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};
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}}
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#endif
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