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sprout/tuple/* いろいろ追加

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bolero-MURAKAMI 2011-11-04 02:11:19 +09:00
parent e11c2eb867
commit c2b7bcd46b
13 changed files with 585 additions and 9 deletions
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sprout/tuple/algorithm/copy.hpp Normal file
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#ifndef SPROUT_TUPLE_ALGORITHM_COPY_HPP
#define SPROUT_TUPLE_ALGORITHM_COPY_HPP
#include <cstddef>
#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_traits<Tuple>::clone_type type;
};
} // namespace result_of
namespace detail {
template<typename Result, typename Tuple, typename InputTuple, std::ptrdiff_t... Indexes1, std::ptrdiff_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_clone<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