mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
88 lines
2.8 KiB
C++
88 lines
2.8 KiB
C++
#ifndef SPROUT_TUPLE_ALGORITHM_COPY_HPP
|
|
#define SPROUT_TUPLE_ALGORITHM_COPY_HPP
|
|
|
|
#include <type_traits>
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/index_tuple.hpp>
|
|
#include <sprout/tuple/traits.hpp>
|
|
#include <sprout/tuple/functions.hpp>
|
|
|
|
namespace sprout {
|
|
namespace tuples {
|
|
namespace result_of {
|
|
//
|
|
// copy
|
|
//
|
|
template<typename Tuple, typename InputTuple>
|
|
struct copy {
|
|
public:
|
|
typedef typename sprout::tuples::tuple_construct_traits<Tuple>::copied_type type;
|
|
};
|
|
} // namespace result_of
|
|
|
|
namespace detail {
|
|
template<typename Result, typename Tuple, typename InputTuple, sprout::index_t... Indexes1, sprout::index_t... Indexes2>
|
|
SPROUT_CONSTEXPR inline Result copy_impl(
|
|
Tuple const& t,
|
|
InputTuple const& input,
|
|
sprout::index_tuple<Indexes1...>,
|
|
sprout::index_tuple<Indexes2...>
|
|
)
|
|
{
|
|
return sprout::tuples::remake<Result>(
|
|
t,
|
|
sprout::tuples::get<Indexes2>(input)...,
|
|
sprout::tuples::get<Indexes1>(t)...
|
|
);
|
|
}
|
|
template<typename Tuple, typename InputTuple>
|
|
SPROUT_CONSTEXPR inline typename std::enable_if<
|
|
(sprout::tuples::tuple_size<Tuple>::value > sprout::tuples::tuple_size<InputTuple>::value),
|
|
typename sprout::tuples::result_of::copy<Tuple, InputTuple>::type
|
|
>::type copy(
|
|
Tuple const& t,
|
|
InputTuple const& input
|
|
)
|
|
{
|
|
return sprout::tuples::detail::copy_impl<typename sprout::tuples::result_of::copy<Tuple, InputTuple>::type>(
|
|
t,
|
|
input,
|
|
typename sprout::index_range<sprout::tuples::tuple_size<InputTuple>::value, sprout::tuples::tuple_size<Tuple>::value>::type(),
|
|
typename sprout::index_range<0, sprout::tuples::tuple_size<InputTuple>::value>::type()
|
|
);
|
|
}
|
|
template<typename Tuple, typename InputTuple>
|
|
SPROUT_CONSTEXPR inline typename std::enable_if<
|
|
!(sprout::tuples::tuple_size<Tuple>::value > sprout::tuples::tuple_size<InputTuple>::value),
|
|
typename sprout::tuples::result_of::copy<Tuple, InputTuple>::type
|
|
>::type copy(
|
|
Tuple const& t,
|
|
InputTuple const& input
|
|
)
|
|
{
|
|
return sprout::tuples::detail::copy_impl<typename sprout::tuples::result_of::copy<Tuple, InputTuple>::type>(
|
|
t,
|
|
input,
|
|
sprout::index_tuple<>(),
|
|
typename sprout::index_range<0, sprout::tuples::tuple_size<Tuple>::value>::type()
|
|
);
|
|
}
|
|
} // namespace detail
|
|
//
|
|
// copy
|
|
//
|
|
template<typename Tuple, typename InputTuple>
|
|
SPROUT_CONSTEXPR inline typename sprout::tuples::result_of::copy<Tuple, InputTuple>::type copy(
|
|
Tuple const& t,
|
|
InputTuple const& input
|
|
)
|
|
{
|
|
return sprout::tuples::detail::copy(
|
|
t,
|
|
input
|
|
);
|
|
}
|
|
} // namespace tuples
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_TUPLE_ALGORITHM_COPY_HPP
|