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bolero-MURAKAMI 2011-09-01 02:48:32 +00:00
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sprout/algorithm/fixed/pop_heap.hpp Normal file
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#ifndef SPROUT_ALGORITHM_FIXED_POP_HEAP_HPP
#define SPROUT_ALGORITHM_FIXED_POP_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 pop_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 n = 0,
typename sprout::fixed_container_traits<Container>::difference_type l = 1,
typename sprout::fixed_container_traits<Container>::difference_type r = 2
)
{
return r < size && comp(*(sprout::fixed_begin(cont) + offset + l), *(sprout::fixed_begin(cont) + offset + r))
? comp(*(sprout::fixed_begin(cont) + offset + n), *(sprout::fixed_begin(cont) + offset + r))
? sprout::fixed::detail::pop_heap_impl(
sprout::fixed::swap_element(cont, sprout::fixed_begin(cont) + offset + n, sprout::fixed_begin(cont) + offset + r),
comp,
offset,
size,
r,
r * 2 + 1,
r * 2 + 2
)
: sprout::get_fixed_copy(cont)
: l < size
? comp(*(sprout::fixed_begin(cont) + offset + n), *(sprout::fixed_begin(cont) + offset + l))
? sprout::fixed::detail::pop_heap_impl(
sprout::fixed::swap_element(cont, sprout::fixed_begin(cont) + offset + n, sprout::fixed_begin(cont) + offset + l),
comp,
offset,
size,
l,
l * 2 + 1,
l * 2 + 2
)
: sprout::get_fixed_copy(cont)
: sprout::get_fixed_copy(cont)
;
}
} // namespace detail
//
// pop_heap
//
template<typename Container, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Container>::fixed_container_type pop_heap(
Container const& cont,
Compare comp
)
{
return sprout::fixed::detail::pop_heap_impl(
sprout::fixed::swap_element(cont, sprout::begin(cont), sprout::end(cont) - 1),
comp,
sprout::fixed_begin_offset(cont),
sprout::size(cont) - 1
);
}
//
// pop_heap
//
template<typename Container>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Container>::fixed_container_type pop_heap(
Container const& cont
)
{
return sprout::fixed::detail::pop_heap_impl(
sprout::fixed::swap_element(cont, sprout::begin(cont), sprout::end(cont) - 1),
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_POP_HEAP_HPP