| 1 | /*============================================================================= |
|---|---|
| 2 | Copyright (c) 2001-2011 Joel de Guzman |
| 3 | |
| 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 |
| 9 | |
| 10 | namespace boost { namespace mpl |
| 11 | { |
| 12 | struct forward_iterator_tag; |
| 13 | struct bidirectional_iterator_tag; |
| 14 | struct random_access_iterator_tag; |
| 15 | }} |
| 16 | |
| 17 | namespace boost { namespace fusion |
| 18 | { |
| 19 | struct forward_traversal_tag; |
| 20 | struct bidirectional_traversal_tag; |
| 21 | struct random_access_traversal_tag; |
| 22 | }} |
| 23 | |
| 24 | namespace boost { namespace fusion { namespace detail |
| 25 | { |
| 26 | template <typename Category> |
| 27 | struct mpl_iterator_category; |
| 28 | |
| 29 | template <> |
| 30 | struct mpl_iterator_category<mpl::forward_iterator_tag> |
| 31 | { |
| 32 | typedef forward_traversal_tag type; |
| 33 | }; |
| 34 | |
| 35 | template <> |
| 36 | struct mpl_iterator_category<mpl::bidirectional_iterator_tag> |
| 37 | { |
| 38 | typedef bidirectional_traversal_tag type; |
| 39 | }; |
| 40 | |
| 41 | template <> |
| 42 | struct mpl_iterator_category<mpl::random_access_iterator_tag> |
| 43 | { |
| 44 | typedef random_access_traversal_tag type; |
| 45 | }; |
| 46 | |
| 47 | template <> |
| 48 | struct mpl_iterator_category<forward_traversal_tag> |
| 49 | { |
| 50 | typedef forward_traversal_tag type; |
| 51 | }; |
| 52 | |
| 53 | template <> |
| 54 | struct mpl_iterator_category<bidirectional_traversal_tag> |
| 55 | { |
| 56 | typedef bidirectional_traversal_tag type; |
| 57 | }; |
| 58 | |
| 59 | template <> |
| 60 | struct mpl_iterator_category<random_access_traversal_tag> |
| 61 | { |
| 62 | typedef random_access_traversal_tag type; |
| 63 | }; |
| 64 | }}} |
| 65 | |
| 66 | #endif |
| 67 |