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Diffstat (limited to 'src/third_party/boost-1.69.0/boost/fusion/iterator/mpl/fusion_iterator.hpp')
-rw-r--r-- | src/third_party/boost-1.69.0/boost/fusion/iterator/mpl/fusion_iterator.hpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/src/third_party/boost-1.69.0/boost/fusion/iterator/mpl/fusion_iterator.hpp b/src/third_party/boost-1.69.0/boost/fusion/iterator/mpl/fusion_iterator.hpp new file mode 100644 index 00000000000..f8feacf6710 --- /dev/null +++ b/src/third_party/boost-1.69.0/boost/fusion/iterator/mpl/fusion_iterator.hpp @@ -0,0 +1,80 @@ +/*============================================================================= + 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_FUSION_ITERATOR_10012005_1551) +#define FUSION_FUSION_ITERATOR_10012005_1551 + +#include <boost/fusion/support/config.hpp> +#include <boost/fusion/iterator/value_of.hpp> +#include <boost/fusion/iterator/next.hpp> +#include <boost/fusion/iterator/prior.hpp> +#include <boost/fusion/iterator/advance.hpp> +#include <boost/fusion/iterator/distance.hpp> +#include <boost/fusion/support/category_of.hpp> +#include <boost/mpl/next_prior.hpp> +#include <boost/mpl/advance_fwd.hpp> +#include <boost/mpl/distance_fwd.hpp> +#include <boost/mpl/iterator_tags.hpp> +#include <boost/mpl/eval_if.hpp> +#include <boost/type_traits/is_base_of.hpp> + +namespace boost { namespace fusion { namespace detail +{ + +template<class Category> +struct to_mpl_category { + typedef typename mpl::eval_if< + is_base_of<random_access_traversal_tag, Category>, + mpl::random_access_iterator_tag, + mpl::eval_if< + is_base_of<bidirectional_traversal_tag, Category>, + mpl::bidirectional_iterator_tag, + mpl::forward_iterator_tag + > + >::type type; +}; + +}}} + +namespace boost { namespace mpl +{ + template <typename Iterator> + struct fusion_iterator + { + typedef typename fusion::result_of::value_of<Iterator>::type type; + typedef typename fusion::traits::category_of<Iterator>::type fusion_category; + typedef typename fusion::detail::to_mpl_category<fusion_category>::type category; + typedef Iterator iterator; + }; + + template <typename Iterator> + struct next<fusion_iterator<Iterator> > + { + typedef fusion_iterator<typename fusion::result_of::next<Iterator>::type> type; + }; + + template <typename Iterator> + struct prior<fusion_iterator<Iterator> > + { + typedef fusion_iterator<typename fusion::result_of::prior<Iterator>::type> type; + }; + + template <typename Iterator, typename N> + struct advance<fusion_iterator<Iterator>, N> + { + typedef fusion_iterator<typename fusion::result_of::advance<Iterator, N>::type> type; + }; + + template <typename First, typename Last> + struct distance<fusion_iterator<First>, fusion_iterator<Last> > + : fusion::result_of::distance<First, Last> + {}; + +}} + +#endif + + |