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Diffstat (limited to '3rdParty/Boost/src/boost/fusion/view/transform_view/detail/prior_impl.hpp')
-rw-r--r-- | 3rdParty/Boost/src/boost/fusion/view/transform_view/detail/prior_impl.hpp | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/fusion/view/transform_view/detail/prior_impl.hpp b/3rdParty/Boost/src/boost/fusion/view/transform_view/detail/prior_impl.hpp new file mode 100644 index 0000000..f7d4996 --- /dev/null +++ b/3rdParty/Boost/src/boost/fusion/view/transform_view/detail/prior_impl.hpp @@ -0,0 +1,73 @@ +/*============================================================================= + Copyright (c) 2001-2006 Joel de Guzman + Copyright (c) 2005-2006 Dan Marsden + + 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_PREV_IMPL_13122005_2110) +#define FUSION_PREV_IMPL_13122005_2110 + +#include <boost/fusion/iterator/prior.hpp> + +namespace boost { namespace fusion +{ + struct transform_view_iterator_tag; + struct transform_view_iterator2_tag; + + template<typename First, typename F> + struct transform_view_iterator; + + template <typename First1, typename First2, typename F> + struct transform_view_iterator2; + + namespace extension + { + template<typename Tag> + struct prior_impl; + + // Unary Version + template<> + struct prior_impl<transform_view_iterator_tag> + { + template<typename Iterator> + struct apply + { + typedef typename Iterator::first_type first_type; + typedef typename result_of::prior<first_type>::type prior_type; + typedef typename Iterator::transform_type transform_type; + typedef transform_view_iterator<prior_type, transform_type> type; + + static type + call(Iterator const& i) + { + return type(fusion::prior(i.first), i.f); + } + }; + }; + + // Binary Version + template<> + struct prior_impl<transform_view_iterator2_tag> + { + template<typename Iterator> + struct apply + { + typedef typename Iterator::first1_type first1_type; + typedef typename Iterator::first2_type first2_type; + typedef typename result_of::prior<first1_type>::type prior1_type; + typedef typename result_of::prior<first2_type>::type prior2_type; + typedef typename Iterator::transform_type transform_type; + typedef transform_view_iterator2<prior1_type, prior2_type, transform_type> type; + + static type + call(Iterator const& i) + { + return type(fusion::prior(i.first1), fusion::prior(i.first2), i.f); + } + }; + }; + } +}} + +#endif |