/Src/Dependencies/Boost/boost/fusion/support/is_sequence.hpp
http://hadesmem.googlecode.com/ · C++ Header · 74 lines · 56 code · 11 blank · 7 comment · 0 complexity · dc1859eac5658e95645a10ef20617f50 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_IS_SEQUENCE_05052005_1002)
- #define FUSION_IS_SEQUENCE_05052005_1002
- #include <boost/fusion/support/sequence_base.hpp>
- #include <boost/fusion/support/tag_of.hpp>
- #include <boost/mpl/is_sequence.hpp>
- #include <boost/mpl/or.hpp>
- #include <boost/mpl/bool.hpp>
- #include <boost/type_traits/is_convertible.hpp>
- #include <boost/type_traits/is_same.hpp>
- namespace boost { namespace fusion
- {
- // Special tags:
- struct non_fusion_tag;
- 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
- namespace extension
- {
- template <typename T>
- struct is_sequence_impl
- {
- template <typename Sequence>
- struct apply
- : is_convertible<Sequence, detail::from_sequence_convertible_type>
- {};
- };
- template <>
- struct is_sequence_impl<non_fusion_tag>
- {
- template <typename T>
- struct apply : mpl::false_ {};
- };
- template <>
- struct is_sequence_impl<boost_tuple_tag>;
- template <>
- struct is_sequence_impl<boost_array_tag>;
- template <>
- struct is_sequence_impl<mpl_sequence_tag>;
- template <>
- struct is_sequence_impl<std_pair_tag>;
- }
- namespace traits
- {
- template <typename T>
- struct is_sequence
- : extension::is_sequence_impl<
- typename fusion::detail::tag_of<T>::type
- >::template apply<T>
- {};
- template <typename Sequence, typename Enable = void>
- struct is_native_fusion_sequence
- : is_convertible<Sequence, detail::from_sequence_convertible_type>
- {};
- }
- }}
- #endif