mirror of
https://github.com/bolero-MURAKAMI/Sprout
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71 lines
2.6 KiB
C++
71 lines
2.6 KiB
C++
#ifndef SPROUT_ALGORITHM_INFIT_NTH_ELEMENT_HPP
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#define SPROUT_ALGORITHM_INFIT_NTH_ELEMENT_HPP
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#include <sprout/config.hpp>
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#include <sprout/fixed_container/traits.hpp>
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#include <sprout/fixed_container/functions.hpp>
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#include <sprout/algorithm/fixed/nth_element.hpp>
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#include <sprout/sub_array.hpp>
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#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
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namespace sprout {
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namespace infit {
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namespace detail {
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template<typename Container, typename Compare>
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SPROUT_CONSTEXPR inline sprout::sub_array<typename sprout::fixed_container_traits<Container>::fixed_container_type> nth_element_impl(
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Container const& cont,
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typename sprout::fixed_container_traits<Container>::const_iterator nth,
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Compare comp,
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typename sprout::fixed_container_traits<Container>::difference_type offset
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)
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{
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return sprout::sub_copy(
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sprout::fixed::nth_element(cont, nth, comp),
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offset,
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offset + NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::begin(cont), nth) + 1
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);
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}
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} // namespace detail
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//
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// nth_element
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//
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template<typename Container, typename Compare>
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SPROUT_CONSTEXPR inline sprout::sub_array<typename sprout::fixed_container_traits<Container>::fixed_container_type> nth_element(
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Container const& cont,
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typename sprout::fixed_container_traits<Container>::const_iterator nth,
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Compare comp
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)
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{
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return sprout::infit::detail::nth_element_impl(cont, nth, comp, sprout::fixed_begin_offset(cont));
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}
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namespace detail {
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template<typename Container>
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SPROUT_CONSTEXPR inline sprout::sub_array<typename sprout::fixed_container_traits<Container>::fixed_container_type> nth_element_impl(
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Container const& cont,
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typename sprout::fixed_container_traits<Container>::const_iterator nth,
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typename sprout::fixed_container_traits<Container>::difference_type offset
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)
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{
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return sprout::sub_copy(
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sprout::fixed::nth_element(cont, nth),
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offset,
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offset + NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::begin(cont), nth) + 1
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);
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}
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} // namespace detail
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//
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// nth_element
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//
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template<typename Container>
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SPROUT_CONSTEXPR inline sprout::sub_array<typename sprout::fixed_container_traits<Container>::fixed_container_type> nth_element(
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Container const& cont,
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typename sprout::fixed_container_traits<Container>::const_iterator nth
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)
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{
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return sprout::infit::detail::nth_element_impl(cont, nth, sprout::fixed_begin_offset(cont));
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}
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} // namespace infit
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_INFIT_NTH_ELEMENT_HPP
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