[857] | 1 | /*=============================================================================
|
---|
| 2 | Copyright (c) 2003 Joel de Guzman
|
---|
| 3 | Copyright (c) 2004 Peder Holt
|
---|
| 4 |
|
---|
| 5 | Use, modification and distribution is subject to the Boost Software
|
---|
| 6 | License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
|
---|
| 7 | http://www.boost.org/LICENSE_1_0.txt)
|
---|
| 8 | ==============================================================================*/
|
---|
| 9 | #if !defined(FUSION_ITERATOR_TUPLE_ITERATOR_HPP)
|
---|
| 10 | #define FUSION_ITERATOR_TUPLE_ITERATOR_HPP
|
---|
| 11 |
|
---|
| 12 | #include <boost/mpl/int.hpp>
|
---|
| 13 | #include <boost/mpl/eval_if.hpp>
|
---|
| 14 | #include <boost/spirit/fusion/iterator/detail/iterator_base.hpp>
|
---|
| 15 | #include <boost/spirit/fusion/iterator/detail/tuple_iterator/deref_traits.hpp>
|
---|
| 16 | #include <boost/spirit/fusion/iterator/detail/tuple_iterator/value_traits.hpp>
|
---|
| 17 | #include <boost/spirit/fusion/iterator/detail/tuple_iterator/next_traits.hpp>
|
---|
| 18 | #include <boost/spirit/fusion/iterator/detail/tuple_iterator/prior_traits.hpp>
|
---|
| 19 | #include <boost/spirit/fusion/iterator/detail/tuple_iterator/equal_to_traits.hpp>
|
---|
| 20 | #include <boost/spirit/fusion/sequence/detail/tuple_begin_end_traits.hpp>
|
---|
| 21 | #include <boost/mpl/eval_if.hpp>
|
---|
| 22 | #include <boost/mpl/less.hpp>
|
---|
| 23 | #include <boost/mpl/identity.hpp>
|
---|
| 24 |
|
---|
| 25 | namespace boost { namespace fusion
|
---|
| 26 | {
|
---|
| 27 | struct tuple_iterator_tag;
|
---|
| 28 | struct void_t;
|
---|
| 29 |
|
---|
| 30 | template <int N, typename Tuple>
|
---|
| 31 | struct tuple_iterator;
|
---|
| 32 |
|
---|
| 33 | template <int N, typename Tuple>
|
---|
| 34 | struct tuple_iterator_base : iterator_base<tuple_iterator<N, Tuple> >
|
---|
| 35 | {
|
---|
| 36 | typedef FUSION_INT(N) index;
|
---|
| 37 | typedef Tuple tuple;
|
---|
| 38 | typedef tuple_iterator_tag tag;
|
---|
| 39 | typedef tuple_iterator<N, Tuple> self_type;
|
---|
| 40 | };
|
---|
| 41 |
|
---|
| 42 | template <int N, typename Tuple>
|
---|
| 43 | struct tuple_iterator : tuple_iterator_base<N,Tuple>
|
---|
| 44 | {
|
---|
| 45 | typedef typename tuple_iterator_base<N,Tuple>::tuple tuple;
|
---|
| 46 | typedef typename tuple_iterator_base<N,Tuple>::index index;
|
---|
| 47 | typedef typename
|
---|
| 48 | mpl::eval_if<
|
---|
| 49 | mpl::less<index, typename Tuple::size>
|
---|
| 50 | , detail::tuple_iterator_next_traits_impl<tuple_iterator_base<N,Tuple> >
|
---|
| 51 | , mpl::identity<void_t>
|
---|
| 52 | >::type
|
---|
| 53 | next;
|
---|
| 54 |
|
---|
| 55 | typedef typename
|
---|
| 56 | mpl::eval_if<
|
---|
| 57 | mpl::less<index, typename Tuple::size>
|
---|
| 58 | , detail::tuple_iterator_value_traits_impl<tuple_iterator_base<N,Tuple> >
|
---|
| 59 | , mpl::identity<void_t>
|
---|
| 60 | >::type
|
---|
| 61 | type;
|
---|
| 62 |
|
---|
| 63 | #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
---|
| 64 | tuple_iterator(tuple_iterator const& i);
|
---|
| 65 | #else
|
---|
| 66 | template <int N2, typename Tuple2>
|
---|
| 67 | tuple_iterator(tuple_iterator<N2, Tuple2> const& i)
|
---|
| 68 | : t(static_cast<tuple&>(i.get_tuple())) {}
|
---|
| 69 | #endif
|
---|
| 70 | tuple_iterator(tuple& t);
|
---|
| 71 |
|
---|
| 72 | tuple&
|
---|
| 73 | get_tuple() const;
|
---|
| 74 | private:
|
---|
| 75 |
|
---|
| 76 | tuple& t;
|
---|
| 77 | };
|
---|
| 78 |
|
---|
| 79 | #if BOOST_WORKAROUND(BOOST_MSVC, < 1300)
|
---|
| 80 | template <int N, typename Tuple>
|
---|
| 81 | tuple_iterator<N,Tuple>::tuple_iterator(tuple_iterator const& i)
|
---|
| 82 | : t(static_cast<tuple&>(i.get_tuple())) {}
|
---|
| 83 | #endif
|
---|
| 84 |
|
---|
| 85 | template <int N, typename Tuple>
|
---|
| 86 | tuple_iterator<N,Tuple>::tuple_iterator(tuple& t)
|
---|
| 87 | : t(t) {}
|
---|
| 88 |
|
---|
| 89 | template <int N, typename Tuple>
|
---|
| 90 | typename tuple_iterator<N,Tuple>::tuple&
|
---|
| 91 | tuple_iterator<N,Tuple>::get_tuple() const
|
---|
| 92 | {
|
---|
| 93 | return t;
|
---|
| 94 | }
|
---|
| 95 | }}
|
---|
| 96 |
|
---|
| 97 | #endif
|
---|