projects / ceph.git / blame
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|---|---|---|
| 7c673cae FG |
1 | /*============================================================================= |
| 2 | Copyright (c) 2001-2011 Joel de Guzman | |
| 92f5a8d4 | 3 | Copyright (c) 2018 Kohei Takahashi |
| 7c673cae FG |
4 | |
| 5 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 6 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
| 7 | ==============================================================================*/ | |
| 8 | #if !defined(FUSION_FILTER_VIEW_ITERATOR_05062005_0849) | |
| 9 | #define FUSION_FILTER_VIEW_ITERATOR_05062005_0849 | |
| 10 | ||
| 11 | #include <boost/fusion/support/config.hpp> | |
| 12 | #include <boost/fusion/iterator/mpl/convert_iterator.hpp> | |
| 7c673cae FG |
13 | #include <boost/fusion/iterator/value_of.hpp> |
| 14 | #include <boost/fusion/support/iterator_base.hpp> | |
| 15 | #include <boost/fusion/algorithm/query/detail/find_if.hpp> | |
| 16 | #include <boost/mpl/lambda.hpp> | |
| 17 | #include <boost/mpl/quote.hpp> | |
| 18 | #include <boost/mpl/bind.hpp> | |
| 19 | #include <boost/mpl/placeholders.hpp> | |
| 20 | ||
| 21 | #include <boost/fusion/view/filter_view/detail/deref_impl.hpp> | |
| 22 | #include <boost/fusion/view/filter_view/detail/next_impl.hpp> | |
| 23 | #include <boost/fusion/view/filter_view/detail/value_of_impl.hpp> | |
| 24 | #include <boost/fusion/view/filter_view/detail/equal_to_impl.hpp> | |
| 25 | #include <boost/fusion/view/filter_view/detail/deref_data_impl.hpp> | |
| 26 | #include <boost/fusion/view/filter_view/detail/value_of_data_impl.hpp> | |
| 27 | #include <boost/fusion/view/filter_view/detail/key_of_impl.hpp> | |
| 28 | ||
| 29 | namespace boost { namespace fusion | |
| 30 | { | |
| 31 | struct filter_view_iterator_tag; | |
| 32 | struct forward_traversal_tag; | |
| 33 | ||
| 34 | template <typename Category, typename First, typename Last, typename Pred> | |
| 35 | struct filter_iterator : iterator_base<filter_iterator<Category, First, Last, Pred> > | |
| 36 | { | |
| 37 | typedef convert_iterator<First> first_converter; | |
| 38 | typedef typename first_converter::type first_iter; | |
| 39 | typedef convert_iterator<Last> last_converter; | |
| 40 | typedef typename last_converter::type last_iter; | |
| 41 | ||
| 42 | typedef filter_view_iterator_tag fusion_tag; | |
| 43 | typedef Category category; | |
| 44 | typedef | |
| 45 | detail::static_find_if< | |
| 46 | first_iter | |
| 47 | , last_iter | |
| 48 | , mpl::bind1< | |
| 49 | typename mpl::lambda<Pred>::type | |
| 50 | , mpl::bind1<mpl::quote1<result_of::value_of>,mpl::_1> | |
| 51 | > | |
| 52 | > | |
| 53 | filter; | |
| 54 | typedef typename filter::type first_type; | |
| 55 | typedef last_iter last_type; | |
| 56 | typedef Pred pred_type; | |
| 57 | ||
| 58 | BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED | |
| 59 | filter_iterator(First const& in_first) | |
| 60 | : first(filter::iter_call(first_converter::call(in_first))) {} | |
| 61 | ||
| 62 | first_type first; | |
| 63 | ||
| 64 | private: | |
| 65 | // silence MSVC warning C4512: assignment operator could not be generated | |
| 66 | filter_iterator& operator= (filter_iterator const&); | |
| 67 | }; | |
| 68 | }} | |
| 69 | ||
| 70 | #ifdef BOOST_FUSION_WORKAROUND_FOR_LWG_2408 | |
| 71 | namespace std | |
| 72 | { | |
| 73 | template <typename Category, typename First, typename Last, typename Pred> | |
| 74 | struct iterator_traits< ::boost::fusion::filter_iterator<Category, First, Last, Pred> > | |
| 75 | { }; | |
| 76 | } | |
| 77 | #endif | |
| 78 | ||
| 79 | #endif | |
| 80 | ||
| 81 |