1 /*=============================================================================
2 Copyright (c) 2001-2011 Joel de Guzman
4 Distributed under the Boost Software License, Version 1.0. (See accompanying
5 file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
6 ==============================================================================*/
7 #if !defined(FUSION_MPL_ITERATOR_CATEGORY_07212005_0923)
8 #define FUSION_MPL_ITERATOR_CATEGORY_07212005_0923
10 namespace boost { namespace mpl
12 struct forward_iterator_tag;
13 struct bidirectional_iterator_tag;
14 struct random_access_iterator_tag;
17 namespace boost { namespace fusion
19 struct forward_traversal_tag;
20 struct bidirectional_traversal_tag;
21 struct random_access_traversal_tag;
24 namespace boost { namespace fusion { namespace detail
26 template <typename Category>
27 struct mpl_iterator_category;
30 struct mpl_iterator_category<mpl::forward_iterator_tag>
32 typedef forward_traversal_tag type;
36 struct mpl_iterator_category<mpl::bidirectional_iterator_tag>
38 typedef bidirectional_traversal_tag type;
42 struct mpl_iterator_category<mpl::random_access_iterator_tag>
44 typedef random_access_traversal_tag type;
48 struct mpl_iterator_category<forward_traversal_tag>
50 typedef forward_traversal_tag type;
54 struct mpl_iterator_category<bidirectional_traversal_tag>
56 typedef bidirectional_traversal_tag type;
60 struct mpl_iterator_category<random_access_traversal_tag>
62 typedef random_access_traversal_tag type;