mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2024-11-14 10:39:05 +00:00
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
#ifndef SPROUT_ALGORITHM_FIT_NTH_ELEMENT_HPP
|
|
#define SPROUT_ALGORITHM_FIT_NTH_ELEMENT_HPP
|
|
|
|
#include <sprout/config.hpp>
|
|
#include <sprout/container/traits.hpp>
|
|
#include <sprout/container/functions.hpp>
|
|
#include <sprout/algorithm/fixed/nth_element.hpp>
|
|
#include <sprout/algorithm/fit/result_of.hpp>
|
|
#include <sprout/sub_array.hpp>
|
|
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
|
|
|
|
namespace sprout {
|
|
namespace fit {
|
|
namespace detail {
|
|
template<typename Container, typename Compare>
|
|
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Container>::type nth_element_impl(
|
|
Container const& cont,
|
|
typename sprout::container_traits<Container>::const_iterator nth,
|
|
Compare comp,
|
|
typename sprout::container_traits<Container>::difference_type offset
|
|
)
|
|
{
|
|
return sprout::sub_copy(
|
|
sprout::get_internal(sprout::fixed::nth_element(cont, nth, comp)),
|
|
offset,
|
|
offset + NS_SSCRISK_CEL_OR_SPROUT::distance(sprout::begin(cont), nth) + 1
|
|
);
|
|
}
|
|
} // namespace detail
|
|
//
|
|
// nth_element
|
|
//
|
|
template<typename Container, typename Compare>
|
|
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Container>::type nth_element(
|
|
Container const& cont,
|
|
typename sprout::container_traits<Container>::const_iterator nth,
|
|
Compare comp
|
|
)
|
|
{
|
|
return sprout::fit::detail::nth_element_impl(cont, nth, comp, sprout::internal_begin_offset(cont));
|
|
}
|
|
|
|
namespace detail {
|
|
template<typename Container>
|
|
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Container>::type nth_element_impl(
|
|
Container const& cont,
|
|
typename sprout::container_traits<Container>::const_iterator nth,
|
|
typename sprout::container_traits<Container>::difference_type offset
|
|
)
|
|
{
|
|
return sprout::sub_copy(
|
|
sprout::get_internal(sprout::fixed::nth_element(cont, nth)),
|
|
offset,
|
|
offset + NS_SSCRISK_CEL_OR_SPROUT::distance(sprout::begin(cont), nth) + 1
|
|
);
|
|
}
|
|
} // namespace detail
|
|
//
|
|
// nth_element
|
|
//
|
|
template<typename Container>
|
|
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Container>::type nth_element(
|
|
Container const& cont,
|
|
typename sprout::container_traits<Container>::const_iterator nth
|
|
)
|
|
{
|
|
return sprout::fit::detail::nth_element_impl(cont, nth, sprout::internal_begin_offset(cont));
|
|
}
|
|
} // namespace fit
|
|
} // namespace sprout
|
|
|
|
#endif // #ifndef SPROUT_ALGORITHM_FIT_NTH_ELEMENT_HPP
|