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Sprout/sprout/algorithm/fixed/make_partial_heap.hpp
2011-10-02 00:19:13 +09:00

110 lines
3.9 KiB
C++

#ifndef SPROUT_ALGORITHM_FIXED_MAKE_PARTIAL_HEAP_HPP
#define SPROUT_ALGORITHM_FIXED_MAKE_PARTIAL_HEAP_HPP
#include <sprout/config.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/algorithm/fixed/result_of.hpp>
#include <sprout/algorithm/fixed/swap_element.hpp>
#include <sprout/algorithm/fixed/pop_heap.hpp>
#include <sprout/algorithm/fixed/make_heap.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT_DETAIL
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace detail {
template<typename Container, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Container>::type make_partial_heap_impl_1(
Container const& cont,
Compare comp,
typename sprout::fixed_container_traits<Container>::difference_type offset,
typename sprout::fixed_container_traits<Container>::difference_type size,
typename sprout::fixed_container_traits<Container>::difference_type middle_size,
typename sprout::fixed_container_traits<Container>::difference_type n
)
{
return n < size
? comp(*sprout::next(sprout::fixed_begin(cont), offset + n), *sprout::next(sprout::fixed_begin(cont), offset))
? sprout::fixed::detail::make_partial_heap_impl_1(
sprout::fixed::detail::pop_heap_impl(
sprout::fixed::swap_element(
cont,
sprout::next(sprout::fixed_begin(cont), offset + n),
sprout::next(sprout::fixed_begin(cont), offset)
),
comp,
offset,
middle_size
),
comp,
offset,
size,
middle_size,
n + 1
)
: sprout::fixed::detail::make_partial_heap_impl_1(cont, comp, offset, size, middle_size, n + 1)
: sprout::clone(cont)
;
}
template<typename Container, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Container>::type make_partial_heap_impl(
Container const& cont,
Compare comp,
typename sprout::fixed_container_traits<Container>::difference_type offset,
typename sprout::fixed_container_traits<Container>::difference_type size,
typename sprout::fixed_container_traits<Container>::difference_type middle_size
)
{
return sprout::fixed::detail::make_partial_heap_impl_1(
sprout::fixed::detail::make_heap_impl(cont, comp, offset, middle_size),
comp,
offset,
size,
middle_size,
middle_size
);
}
} // namespace detail
//
// make_partial_heap
//
template<typename Container, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Container>::type make_partial_heap(
Container const& cont,
typename sprout::fixed_container_traits<Container>::const_iterator middle,
Compare comp
)
{
return sprout::fixed::detail::make_partial_heap_impl(
cont,
comp,
sprout::fixed_begin_offset(cont),
sprout::size(cont),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::begin(cont), middle)
);
}
//
// make_partial_heap
//
template<typename Container>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Container>::type make_partial_heap(
Container const& cont,
typename sprout::fixed_container_traits<Container>::const_iterator middle
)
{
return sprout::fixed::detail::make_partial_heap_impl(
cont,
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::less<typename sprout::fixed_container_traits<Container>::value_type>(),
sprout::fixed_begin_offset(cont),
sprout::size(cont),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::begin(cont), middle)
);
}
} // namespace fixed
using sprout::fixed::make_partial_heap;
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_MAKE_PARTIAL_HEAP_HPP