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Diffstat (limited to '3rdParty/Boost/src/boost/fusion/view/filter_view/detail/next_impl.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/fusion/view/filter_view/detail/next_impl.hpp | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/fusion/view/filter_view/detail/next_impl.hpp b/3rdParty/Boost/src/boost/fusion/view/filter_view/detail/next_impl.hpp new file mode 100644 index 0000000..ae1e0f0 --- /dev/null +++ b/3rdParty/Boost/src/boost/fusion/view/filter_view/detail/next_impl.hpp @@ -0,0 +1,77 @@ +/*============================================================================= + 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_NEXT_IMPL_06052005_0900) +#define FUSION_NEXT_IMPL_06052005_0900 + +#include <boost/fusion/algorithm/query/detail/find_if.hpp> +#include <boost/fusion/iterator/value_of.hpp> +#include <boost/mpl/eval_if.hpp> +#include <boost/mpl/identity.hpp> +#include <boost/mpl/lambda.hpp> +#include <boost/mpl/quote.hpp> +#include <boost/mpl/bind.hpp> +#include <boost/mpl/placeholders.hpp> + +namespace boost { namespace fusion +{ + struct filter_view_iterator_tag; + + template <typename Category, typename First, typename Last, typename Pred> + struct filter_iterator; + + namespace extension + { + template <typename Tag> + struct next_impl; + + template <> + struct next_impl<filter_view_iterator_tag> + { + template <typename Iterator> + struct apply + { + typedef typename Iterator::first_type first_type; + typedef typename Iterator::last_type last_type; + typedef typename Iterator::pred_type pred_type; + typedef typename Iterator::category category; + + typedef typename + mpl::eval_if< + result_of::equal_to<first_type, last_type> + , mpl::identity<last_type> + , result_of::next<first_type> + >::type + next_type; + + typedef typename + detail::static_find_if< + next_type + , last_type + , mpl::bind1< + typename mpl::lambda<pred_type>::type + , mpl::bind1<mpl::quote1<result_of::value_of>,mpl::_1> + > + > + filter; + + typedef filter_iterator< + category, typename filter::type, last_type, pred_type> + type; + + static type + call(Iterator const& i) + { + return type(filter::iter_call(i.first)); + } + }; + }; + } +}} + +#endif + + |