1//////////////////////////////////////////////////////////////////////////////
2//
3// (C) Copyright Ion Gaztanaga 2014-2014.
4// Distributed under the Boost Software License, Version 1.0.
5// (See accompanying file LICENSE_1_0.txt or copy at
6// http://www.boost.org/LICENSE_1_0.txt)
7//
8// See http://www.boost.org/libs/move for documentation.
9//
10//////////////////////////////////////////////////////////////////////////////
11
12//! \file
13
14#ifndef BOOST_MOVE_DETAIL_ITERATOR_TRAITS_HPP
15#define BOOST_MOVE_DETAIL_ITERATOR_TRAITS_HPP
16
17#ifndef BOOST_CONFIG_HPP
18# include <boost/config.hpp>
19#endif
20#
21#if defined(BOOST_HAS_PRAGMA_ONCE)
22# pragma once
23#endif
24
25#include <cstddef>
26#include <boost/move/detail/type_traits.hpp>
27
28#include <boost/move/detail/std_ns_begin.hpp>
29BOOST_MOVE_STD_NS_BEG
30
31struct input_iterator_tag;
32struct forward_iterator_tag;
33struct bidirectional_iterator_tag;
34struct random_access_iterator_tag;
35struct output_iterator_tag;
36
37BOOST_MOVE_STD_NS_END
38#include <boost/move/detail/std_ns_end.hpp>
39
40namespace boost{ namespace movelib{
41
42template<class Iterator>
43struct iterator_traits
44{
45 typedef typename Iterator::difference_type difference_type;
46 typedef typename Iterator::value_type value_type;
47 typedef typename Iterator::pointer pointer;
48 typedef typename Iterator::reference reference;
49 typedef typename Iterator::iterator_category iterator_category;
50 typedef typename boost::move_detail::make_unsigned<difference_type>::type size_type;
51};
52
53template<class T>
54struct iterator_traits<T*>
55{
56 typedef std::ptrdiff_t difference_type;
57 typedef T value_type;
58 typedef T* pointer;
59 typedef T& reference;
60 typedef std::random_access_iterator_tag iterator_category;
61 typedef typename boost::move_detail::make_unsigned<difference_type>::type size_type;
62};
63
64template<class T>
65struct iterator_traits<const T*>
66{
67 typedef std::ptrdiff_t difference_type;
68 typedef T value_type;
69 typedef const T* pointer;
70 typedef const T& reference;
71 typedef std::random_access_iterator_tag iterator_category;
72 typedef typename boost::move_detail::make_unsigned<difference_type>::type size_type;
73};
74
75}} //namespace boost { namespace movelib{
76
77#endif //#ifndef BOOST_MOVE_DETAIL_ITERATOR_TRAITS_HPP
78

source code of include/boost/move/detail/iterator_traits.hpp