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add compost dft, spectrum, etc

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bolero-MURAKAMI 2012-12-03 21:48:50 +09:00
parent 6b08a81d3e
commit 24d2a229f3
45 changed files with 1490 additions and 61 deletions
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81
sprout/numeric/unstable_accumulate.hpp Normal file
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#ifndef SPROUT_NUMERIC_UNSTABLE_ACCUMLATE_HPP
#define SPROUT_NUMERIC_UNSTABLE_ACCUMLATE_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/numeric/accumulate.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
namespace sprout {
//
// unstable_accumulate
//
namespace detail {
template<typename T, typename RandomAccessIterator, typename BinaryOperation>
inline SPROUT_CONSTEXPR T
unstable_accumulate_ra(
RandomAccessIterator first, RandomAccessIterator last, BinaryOperation binary_op,
typename std::iterator_traits<RandomAccessIterator>::difference_type pivot
)
{
return pivot == 0 ? *first
: binary_op(
sprout::detail::unstable_accumulate_ra<T>(
first, sprout::next(first, pivot), binary_op,
pivot / 2
),
sprout::detail::unstable_accumulate_ra<T>(
sprout::next(first, pivot), last, binary_op,
(NS_SSCRISK_CEL_OR_SPROUT::distance(first, last) - pivot) / 2
)
)
;
}
template<typename RandomAccessIterator, typename T, typename BinaryOperation>
inline SPROUT_CONSTEXPR T
unstable_accumulate(
RandomAccessIterator first, RandomAccessIterator last, T init, BinaryOperation binary_op,
std::random_access_iterator_tag*
)
{
return first == last ? init
: binary_op(
init,
sprout::detail::unstable_accumulate_ra<T>(
first, last, binary_op,
NS_SSCRISK_CEL_OR_SPROUT::distance(first, last) / 2
)
)
;
}
template<typename InputIterator, typename T, typename BinaryOperation>
inline SPROUT_CONSTEXPR T
unstable_accumulate(
InputIterator first, InputIterator last, T init, BinaryOperation binary_op,
void*
)
{
return sprout::accumulate(first, last, init, binary_op);
}
} // namespace detail
template<typename InputIterator, typename T, typename BinaryOperation>
inline SPROUT_CONSTEXPR T
unstable_accumulate(InputIterator first, InputIterator last, T init, BinaryOperation binary_op) {
typedef typename std::iterator_traits<InputIterator>::iterator_category* category;
return sprout::detail::unstable_accumulate(first, last, init, binary_op, category());
}
template<typename InputIterator, typename T>
inline SPROUT_CONSTEXPR T
unstable_accumulate(InputIterator first, InputIterator last, T init) {
return sprout::unstable_accumulate(
first, last, init,
NS_SSCRISK_CEL_OR_SPROUT::plus<typename std::iterator_traits<InputIterator>::value_type>()
);
}
} // namespace sprout
#endif // #ifndef SPROUT_NUMERIC_UNSTABLE_ACCUMLATE_HPP