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Diffstat (limited to 'boost/fusion/container/map/detail/cpp03/deref_impl.hpp')
-rw-r--r-- | boost/fusion/container/map/detail/cpp03/deref_impl.hpp | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/boost/fusion/container/map/detail/cpp03/deref_impl.hpp b/boost/fusion/container/map/detail/cpp03/deref_impl.hpp new file mode 100644 index 0000000000..260c5dfddd --- /dev/null +++ b/boost/fusion/container/map/detail/cpp03/deref_impl.hpp @@ -0,0 +1,47 @@ +/*============================================================================= + Copyright (c) 2009 Christopher Schmidt + + 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) +==============================================================================*/ + +#ifndef BOOST_FUSION_CONTAINER_MAP_DETAIL_DEREF_IMPL_HPP +#define BOOST_FUSION_CONTAINER_MAP_DETAIL_DEREF_IMPL_HPP + +#include <boost/fusion/support/config.hpp> +#include <boost/fusion/sequence/intrinsic/at.hpp> +#include <boost/type_traits/is_const.hpp> + +namespace boost { namespace fusion { namespace extension +{ + template <typename> + struct deref_impl; + + template <> + struct deref_impl<map_iterator_tag> + { + template <typename It> + struct apply + { + typedef typename + result_of::at< + typename mpl::if_< + is_const<typename It::seq_type> + , typename It::seq_type::storage_type const + , typename It::seq_type::storage_type + >::type + , typename It::index + >::type + type; + + BOOST_FUSION_GPU_ENABLED + static type + call(It const& it) + { + return fusion::at<typename It::index>(it.seq->get_data()); + } + }; + }; +}}} + +#endif |