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- /*=============================================================================
- Copyright (c) 2001-2011 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_DEREF_IMPL_07202005_0851)
- #define FUSION_DEREF_IMPL_07202005_0851
- #include <boost/fusion/support/config.hpp>
- #include <boost/fusion/iterator/deref.hpp>
- #include <boost/fusion/iterator/prior.hpp>
- namespace boost { namespace fusion
- {
- struct reverse_view_iterator_tag;
- namespace extension
- {
- template <typename Tag>
- struct deref_impl;
- template <>
- struct deref_impl<reverse_view_iterator_tag>
- {
- template <typename Iterator>
- struct apply
- {
- typedef typename
- result_of::deref<
- typename result_of::prior<
- typename Iterator::first_type
- >::type
- >::type
- type;
-
- BOOST_CONSTEXPR BOOST_FUSION_GPU_ENABLED
- static type
- call(Iterator const& i)
- {
- return *fusion::prior(i.first);
- }
- };
- };
- }
- }}
- #endif
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