| // Boost.Range library | |
| // | |
| // Copyright Neil Groves 2009. Use, modification and | |
| // distribution is subject to the Boost Software License, Version | |
| // 1.0. (See accompanying file LICENSE_1_0.txt or copy at | |
| // http://www.boost.org/LICENSE_1_0.txt) | |
| // | |
| // | |
| // For more information, see http://www.boost.org/libs/range/ | |
| // | |
| #ifndef BOOST_RANGE_DETAIL_DEMOTE_ITERATOR_TRAVERSAL_TAG_HPP_INCLUDED | |
| #define BOOST_RANGE_DETAIL_DEMOTE_ITERATOR_TRAVERSAL_TAG_HPP_INCLUDED | |
| #include <boost/iterator/iterator_categories.hpp> | |
| namespace boost | |
| { | |
| namespace range_detail | |
| { | |
| template<class IteratorTraversalTag1, class IteratorTraversalTag2> | |
| struct demote_iterator_traversal_tag | |
| { | |
| }; | |
| #define BOOST_DEMOTE_TRAVERSAL_TAG( Tag1, Tag2, ResultTag ) \ | |
| template<> struct demote_iterator_traversal_tag< Tag1 , Tag2 > \ | |
| { \ | |
| typedef ResultTag type; \ | |
| }; | |
| BOOST_DEMOTE_TRAVERSAL_TAG( no_traversal_tag, no_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( no_traversal_tag, incrementable_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( no_traversal_tag, single_pass_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( no_traversal_tag, forward_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( no_traversal_tag, bidirectional_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( no_traversal_tag, random_access_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( incrementable_traversal_tag, no_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( incrementable_traversal_tag, incrementable_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( incrementable_traversal_tag, single_pass_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( incrementable_traversal_tag, forward_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( incrementable_traversal_tag, bidirectional_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( incrementable_traversal_tag, random_access_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( single_pass_traversal_tag, no_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( single_pass_traversal_tag, incrementable_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( single_pass_traversal_tag, single_pass_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( single_pass_traversal_tag, forward_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( single_pass_traversal_tag, bidirectional_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( single_pass_traversal_tag, random_access_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( forward_traversal_tag, no_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( forward_traversal_tag, incrementable_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( forward_traversal_tag, single_pass_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( forward_traversal_tag, forward_traversal_tag, forward_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( forward_traversal_tag, bidirectional_traversal_tag, forward_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( forward_traversal_tag, random_access_traversal_tag, forward_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( bidirectional_traversal_tag, no_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( bidirectional_traversal_tag, incrementable_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( bidirectional_traversal_tag, single_pass_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( bidirectional_traversal_tag, forward_traversal_tag, forward_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( bidirectional_traversal_tag, bidirectional_traversal_tag, bidirectional_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( bidirectional_traversal_tag, random_access_traversal_tag, bidirectional_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( random_access_traversal_tag, no_traversal_tag, no_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( random_access_traversal_tag, incrementable_traversal_tag, incrementable_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( random_access_traversal_tag, single_pass_traversal_tag, single_pass_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( random_access_traversal_tag, forward_traversal_tag, forward_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( random_access_traversal_tag, bidirectional_traversal_tag, bidirectional_traversal_tag ) | |
| BOOST_DEMOTE_TRAVERSAL_TAG( random_access_traversal_tag, random_access_traversal_tag, random_access_traversal_tag ) | |
| #undef BOOST_DEMOTE_TRAVERSAL_TAG | |
| } // namespace range_detail | |
| } // namespace boost | |
| #endif // include guard |