1 /////////////////////////////////////////////////////////////////////////////
3 // (C) Copyright Olaf Krzikalla 2004-2006.
4 // (C) Copyright Ion Gaztanaga 2006-2013
6 // Distributed under the Boost Software License, Version 1.0.
7 // (See accompanying file LICENSE_1_0.txt or copy at
8 // http://www.boost.org/LICENSE_1_0.txt)
10 // See http://www.boost.org/libs/intrusive for documentation.
12 /////////////////////////////////////////////////////////////////////////////
14 #ifndef BOOST_INTRUSIVE_SLIST_ITERATOR_HPP
15 #define BOOST_INTRUSIVE_SLIST_ITERATOR_HPP
17 #ifndef BOOST_CONFIG_HPP
18 # include <boost/config.hpp>
21 #if defined(BOOST_HAS_PRAGMA_ONCE)
25 #include <boost/intrusive/detail/config_begin.hpp>
26 #include <boost/intrusive/detail/workaround.hpp>
27 #include <boost/intrusive/detail/std_fwd.hpp>
28 #include <boost/intrusive/detail/iiterator.hpp>
29 #include <boost/intrusive/detail/mpl.hpp>
35 // slist_iterator provides some basic functions for a
36 // node oriented bidirectional iterator:
37 template<class ValueTraits, bool IsConst>
42 <ValueTraits, IsConst, std::forward_iterator_tag> types_t;
44 static const bool stateful_value_traits = types_t::stateful_value_traits;
46 typedef ValueTraits value_traits;
47 typedef typename types_t::node_traits node_traits;
49 typedef typename types_t::node node;
50 typedef typename types_t::node_ptr node_ptr;
51 typedef typename types_t::const_value_traits_ptr const_value_traits_ptr;
54 typedef typename types_t::iterator_type::difference_type difference_type;
55 typedef typename types_t::iterator_type::value_type value_type;
56 typedef typename types_t::iterator_type::pointer pointer;
57 typedef typename types_t::iterator_type::reference reference;
58 typedef typename types_t::iterator_type::iterator_category iterator_category;
60 BOOST_INTRUSIVE_FORCEINLINE slist_iterator()
63 BOOST_INTRUSIVE_FORCEINLINE explicit slist_iterator(const node_ptr & nodeptr, const const_value_traits_ptr &traits_ptr)
64 : members_(nodeptr, traits_ptr)
67 BOOST_INTRUSIVE_FORCEINLINE slist_iterator(slist_iterator<ValueTraits, false> const& other)
68 : members_(other.pointed_node(), other.get_value_traits())
71 BOOST_INTRUSIVE_FORCEINLINE const node_ptr &pointed_node() const
72 { return members_.nodeptr_; }
74 BOOST_INTRUSIVE_FORCEINLINE slist_iterator &operator=(const node_ptr &node)
75 { members_.nodeptr_ = node; return static_cast<slist_iterator&>(*this); }
77 BOOST_INTRUSIVE_FORCEINLINE const_value_traits_ptr get_value_traits() const
78 { return members_.get_ptr(); }
81 BOOST_INTRUSIVE_FORCEINLINE slist_iterator& operator++()
83 members_.nodeptr_ = node_traits::get_next(members_.nodeptr_);
84 return static_cast<slist_iterator&> (*this);
87 BOOST_INTRUSIVE_FORCEINLINE slist_iterator operator++(int)
89 slist_iterator result (*this);
90 members_.nodeptr_ = node_traits::get_next(members_.nodeptr_);
94 BOOST_INTRUSIVE_FORCEINLINE friend bool operator== (const slist_iterator& l, const slist_iterator& r)
95 { return l.pointed_node() == r.pointed_node(); }
97 BOOST_INTRUSIVE_FORCEINLINE friend bool operator!= (const slist_iterator& l, const slist_iterator& r)
100 BOOST_INTRUSIVE_FORCEINLINE reference operator*() const
101 { return *operator->(); }
103 BOOST_INTRUSIVE_FORCEINLINE pointer operator->() const
104 { return this->operator_arrow(detail::bool_<stateful_value_traits>()); }
106 BOOST_INTRUSIVE_FORCEINLINE slist_iterator<ValueTraits, false> unconst() const
107 { return slist_iterator<ValueTraits, false>(this->pointed_node(), this->get_value_traits()); }
111 BOOST_INTRUSIVE_FORCEINLINE pointer operator_arrow(detail::false_) const
112 { return ValueTraits::to_value_ptr(members_.nodeptr_); }
114 BOOST_INTRUSIVE_FORCEINLINE pointer operator_arrow(detail::true_) const
115 { return this->get_value_traits()->to_value_ptr(members_.nodeptr_); }
117 iiterator_members<node_ptr, const_value_traits_ptr, stateful_value_traits> members_;
120 } //namespace intrusive
123 #include <boost/intrusive/detail/config_end.hpp>
125 #endif //BOOST_INTRUSIVE_SLIST_ITERATOR_HPP