/Src/Dependencies/Boost/boost/fusion/sequence/intrinsic/size.hpp
http://hadesmem.googlecode.com/ · C++ Header · 74 lines · 55 code · 12 blank · 7 comment · 0 complexity · d9eaa446f1ac0ec3dcce3aa859d930c1 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_SIZE_05052005_0214)
- #define FUSION_SIZE_05052005_0214
- #include <boost/mpl/int.hpp>
- #include <boost/fusion/support/tag_of.hpp>
- namespace boost { namespace fusion
- {
- // Special tags:
- struct sequence_facade_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 Tag>
- struct size_impl
- {
- template <typename Sequence>
- struct apply : Sequence::size {};
- };
- template <>
- struct size_impl<sequence_facade_tag>
- {
- template <typename Sequence>
- struct apply : Sequence::template size<Sequence> {};
- };
-
- template <>
- struct size_impl<boost_tuple_tag>;
-
- template <>
- struct size_impl<boost_array_tag>;
- template <>
- struct size_impl<mpl_sequence_tag>;
- template <>
- struct size_impl<std_pair_tag>;
- }
- namespace result_of
- {
- template <typename Sequence>
- struct size
- : extension::size_impl<typename detail::tag_of<Sequence>::type>::
- template apply<Sequence>
- {
- typedef typename extension::size_impl<typename detail::tag_of<Sequence>::type>::
- template apply<Sequence>::type size_application;
- BOOST_STATIC_CONSTANT(int, value = size_application::value);
- };
- }
- template <typename Sequence>
- inline typename result_of::size<Sequence>::type
- size(Sequence const&)
- {
- typedef typename result_of::size<Sequence>::type result;
- return result();
- }
- }}
- #endif