diff options
Diffstat (limited to 'src/third_party/boost-1.60.0/boost/fusion/iterator/value_of.hpp')
-rw-r--r-- | src/third_party/boost-1.60.0/boost/fusion/iterator/value_of.hpp | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/src/third_party/boost-1.60.0/boost/fusion/iterator/value_of.hpp b/src/third_party/boost-1.60.0/boost/fusion/iterator/value_of.hpp new file mode 100644 index 00000000000..1408dc7a557 --- /dev/null +++ b/src/third_party/boost-1.60.0/boost/fusion/iterator/value_of.hpp @@ -0,0 +1,58 @@ +/*============================================================================= + 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_VALUE_OF_05052005_1126) +#define FUSION_VALUE_OF_05052005_1126 + +#include <boost/fusion/support/config.hpp> +#include <boost/fusion/support/iterator_base.hpp> +#include <boost/fusion/support/tag_of.hpp> + +namespace boost { namespace fusion +{ + // Special tags: + struct iterator_facade_tag; // iterator facade tag + struct boost_array_iterator_tag; // boost::array iterator tag + struct mpl_iterator_tag; // mpl sequence iterator tag + struct std_pair_iterator_tag; // std::pair iterator tag + + namespace extension + { + template <typename Tag> + struct value_of_impl + { + template <typename Iterator> + struct apply {}; + }; + + template <> + struct value_of_impl<iterator_facade_tag> + { + template <typename Iterator> + struct apply : Iterator::template value_of<Iterator> {}; + }; + + template <> + struct value_of_impl<boost_array_iterator_tag>; + + template <> + struct value_of_impl<mpl_iterator_tag>; + + template <> + struct value_of_impl<std_pair_iterator_tag>; + } + + namespace result_of + { + template <typename Iterator> + struct value_of + : extension::value_of_impl<typename detail::tag_of<Iterator>::type>:: + template apply<Iterator> + {}; + } +}} + +#endif |