coffee/continuable
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Add position to partial results

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Naios 2015-07-01 22:01:56 +02:00
parent 541d3e5def
commit 99fbb8d71f
2 changed files with 32 additions and 14 deletions
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44
include/Continuable.h
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@ -303,13 +303,13 @@ namespace detail
typedef fu::identity<Left..., Right...> type; typedef fu::identity<Left..., Right...> type;
}; };
template<typename Left, typename Right> template<typename Tuple>
struct concat_identities_as_pack; struct identity_to_tuple;
template<typename... Left, typename... Right> template<typename... Args>
struct concat_identities_as_pack<fu::identity<Left...>, fu::identity<Right...>> struct identity_to_tuple<fu::identity<Args...>>
{ {
typedef fu::identity<Left..., std::tuple<Right...>> type; typedef std::tuple<Args...> type;
}; };
template<typename... _CTy> template<typename... _CTy>
@ -339,6 +339,15 @@ namespace detail
} }
}; };
/// Position wrapper class to pass ints as type
template<size_t Position, typename Tuple>
struct partial_result
{
static size_t const position = Count;
typedef Tuple tuple;
};
/// Continuable processing detail implementation /// Continuable processing detail implementation
template <typename... _ATy> template <typename... _ATy>
struct functional_traits struct functional_traits
@ -434,30 +443,37 @@ namespace detail
return remove_void_trait(box_continuable_trait(std::forward<_CTy>(functional))); return remove_void_trait(box_continuable_trait(std::forward<_CTy>(functional)));
} }
template<size_t Count, typename Args, typename Pack, typename... Rest> template<size_t Position, typename Args, typename Pack, typename... Rest>
struct multiple_result_maker; struct multiple_result_maker;
template<size_t Count, typename... Args, typename... Pack> template<size_t Position, typename... Args, typename... Pack>
struct multiple_result_maker<Count, fu::identity<Args...>, fu::identity<Pack...>> struct multiple_result_maker<Position, fu::identity<Args...>, fu::identity<Pack...>>
{ {
typedef fu::identity<Args...> arguments_t; typedef fu::identity<Args...> arguments_t;
typedef fu::identity<Pack...> arguments_storage_t; typedef fu::identity<Pack...> arguments_storage_t;
static size_t const size = Count; static size_t const size = Position;
}; };
template<size_t Count, typename Args, typename Pack, typename Next, typename... Rest> template<size_t Position, typename Args, typename Pack, typename Next, typename... Rest>
struct multiple_result_maker<Count, Args, Pack, Next, Rest...> struct multiple_result_maker<Position, Args, Pack, Next, Rest...>
: public multiple_result_maker< : public multiple_result_maker<
Count + 1, Position + 1,
typename concat_identities< typename concat_identities<
Args, Args,
typename unary_chainer_t<Next, _ATy...>::callback_arguments_t typename unary_chainer_t<Next, _ATy...>::callback_arguments_t
>::type, >::type,
typename concat_identities_as_pack < typename concat_identities <
Pack, Pack,
typename unary_chainer_t<Next, _ATy...>::callback_arguments_t fu::identity<
partial_result<
Position,
typename identity_to_tuple<
typename unary_chainer_t<Next, _ATy...>::callback_arguments_t
>::type
>
>
>::type, >::type,
Rest... Rest...
> { }; > { };

2
test.cpp
View File

@ -252,6 +252,8 @@ int main(int /*argc*/, char** /*argv*/)
detail::concat_identities<fu::identity<int, bool, char>, fu::identity<float, double>>::type myt; detail::concat_identities<fu::identity<int, bool, char>, fu::identity<float, double>>::type myt;
// fu::identity<detail::functional_traits<>::position<1>> i;
std::tuple<int, std::vector<int>> tup; std::tuple<int, std::vector<int>> tup;
std::cout << "ok" << std::endl; std::cout << "ok" << std::endl;