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Sprout/sprout/algorithm/fixed/push_heap.hpp
bolero-MURAKAMI b3bb8121e8 最初
2011-09-01 02:48:32 +00:00

66 lines
2.1 KiB
C++

#ifndef SPROUT_ALGORITHM_FIXED_PUSH_HEAP_HPP
#define SPROUT_ALGORITHM_FIXED_PUSH_HEAP_HPP
#include <sprout/config.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include <sprout/algorithm/fixed/swap_element.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace detail {
template<typename Container, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Container>::fixed_container_type push_heap_impl(
Container const& cont,
Compare comp,
typename sprout::fixed_container_traits<Container>::difference_type offset,
typename sprout::fixed_container_traits<Container>::difference_type n
)
{
return n != 0 && comp(*(sprout::fixed_begin(cont) + offset + (n - 1) / 2), *(sprout::fixed_begin(cont) + offset + n))
? sprout::fixed::detail::push_heap_impl(
sprout::fixed::swap_element(cont, sprout::fixed_begin(cont) + offset + (n - 1) / 2, sprout::fixed_begin(cont) + offset + n),
comp,
offset,
(n - 1) / 2
)
: sprout::get_fixed_copy(cont)
;
}
} // namespace detail
//
// push_heap
//
template<typename Container, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Container>::fixed_container_type push_heap(
Container const& cont,
Compare comp
)
{
return sprout::fixed::detail::push_heap_impl(
cont,
comp,
sprout::fixed_begin_offset(cont),
sprout::size(cont) - 1
);
}
//
// push_heap
//
template<typename Container>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Container>::fixed_container_type push_heap(
Container const& cont
)
{
return sprout::fixed::detail::push_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) - 1
);
}
} // namespace fixed
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_PUSH_HEAP_HPP