/Src/Dependencies/Boost/boost/fusion/support/category_of.hpp
http://hadesmem.googlecode.com/ · C++ Header · 112 lines · 84 code · 21 blank · 7 comment · 0 complexity · 82854f43cd57993b019c869b425660e7 MD5 · raw file
- /*=============================================================================
- Copyright (c) 2001-2006 Joel de Guzman
- Distributed under 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)
- ==============================================================================*/
- #if !defined(FUSION_CATEGORY_OF_07202005_0308)
- #define FUSION_CATEGORY_OF_07202005_0308
- #include <boost/fusion/support/detail/category_of.hpp>
- #include <boost/fusion/support/tag_of.hpp>
- #include <boost/type_traits/is_base_of.hpp>
- namespace boost { namespace fusion
- {
- // Special tags:
- struct boost_tuple_tag; // boost::tuples::tuple tag
- struct boost_array_tag; // boost::array tag
- struct mpl_sequence_tag; // mpl sequence tag
- struct std_pair_tag; // std::pair tag
- struct incrementable_traversal_tag {};
- struct single_pass_traversal_tag
- : incrementable_traversal_tag {};
- struct forward_traversal_tag
- : single_pass_traversal_tag {};
- struct bidirectional_traversal_tag
- : forward_traversal_tag {};
- struct random_access_traversal_tag
- : bidirectional_traversal_tag {};
- struct associative_tag {};
- namespace extension
- {
- template<typename Tag>
- struct category_of_impl
- {
- template<typename T>
- struct apply : detail::fusion_category_of<T> {};
- };
- template <>
- struct category_of_impl<boost_tuple_tag>;
- template <>
- struct category_of_impl<boost_array_tag>;
- template <>
- struct category_of_impl<mpl_sequence_tag>;
- template <>
- struct category_of_impl<std_pair_tag>;
- }
- namespace traits
- {
- template <typename T>
- struct category_of
- : extension::category_of_impl<typename fusion::detail::tag_of<T>::type>::
- template apply<T>
- {};
- template <typename T>
- struct is_associative
- : is_base_of<
- associative_tag
- , typename category_of<T>::type>
- {};
- template <typename T>
- struct is_incrementable
- : is_base_of<
- incrementable_traversal_tag
- , typename category_of<T>::type>
- {};
- template <typename T>
- struct is_single_pass
- : is_base_of<
- single_pass_traversal_tag
- , typename category_of<T>::type>
- {};
- template <typename T>
- struct is_forward
- : is_base_of<
- forward_traversal_tag
- , typename category_of<T>::type>
- {};
- template <typename T>
- struct is_bidirectional
- : is_base_of<
- bidirectional_traversal_tag
- , typename category_of<T>::type>
- {};
- template <typename T>
- struct is_random_access
- : is_base_of<
- random_access_traversal_tag
- , typename category_of<T>::type>
- {};
- }
- }}
- #endif