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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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sprout/iterator/dft_iterator.hpp Normal file
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#ifndef SPROUT_ITERATOR_DFT_ITERATOR_HPP
#define SPROUT_ITERATOR_DFT_ITERATOR_HPP
#include <iterator>
#include <utility>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/iterator/next.hpp>
#include <sprout/iterator/prev.hpp>
#include <sprout/iterator/distance.hpp>
#include <sprout/utility/swap.hpp>
#include <sprout/numeric/dft/dft_element.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
namespace sprout {
//
// dft_iterator
//
template<typename Iterator>
class dft_iterator
: public std::iterator<
std::random_access_iterator_tag,
typename std::iterator_traits<Iterator>::value_type,
typename std::iterator_traits<Iterator>::difference_type,
void,
typename std::iterator_traits<Iterator>::value_type
>
{
private:
typedef std::iterator<
std::random_access_iterator_tag,
typename std::iterator_traits<Iterator>::value_type,
typename std::iterator_traits<Iterator>::difference_type,
void,
typename std::iterator_traits<Iterator>::value_type
> base_type;
public:
typedef Iterator iterator_type;
typedef typename base_type::iterator_category iterator_category;
typedef typename base_type::value_type value_type;
typedef typename base_type::difference_type difference_type;
typedef typename base_type::pointer pointer;
typedef typename base_type::reference reference;
private:
iterator_type first_;
iterator_type last_;
difference_type index_;
difference_type size_;
private:
SPROUT_CONSTEXPR dft_iterator(iterator_type first, iterator_type last, difference_type index, difference_type size)
: first_(first), last_(last), index_(index)
, size_(size)
{}
public:
SPROUT_CONSTEXPR dft_iterator()
: first_(), last_(), index_()
, size_()
{}
dft_iterator(dft_iterator const&) = default;
SPROUT_CONSTEXPR dft_iterator(iterator_type first, iterator_type last, difference_type index = 0)
: first_(first), last_(last), index_(index)
, size_(NS_SSCRISK_CEL_OR_SPROUT::distance(first, last))
{}
SPROUT_CONSTEXPR dft_iterator next() const {
return dft_iterator(first_, last_, index_, index_ + 1, size_);
}
SPROUT_CONSTEXPR dft_iterator prev() const {
return dft_iterator(first_, last_, index_, index_ - 1, size_);
}
void swap(dft_iterator& other)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(sprout::swap(first_, other.first_)) && SPROUT_NOEXCEPT_EXPR(sprout::swap(last_, other.last_)))
{
sprout::swap(first_, other.first_);
sprout::swap(last_, other.last_);
sprout::swap(index_, other.index_);
sprout::swap(size_, other.size_);
}
friend SPROUT_CONSTEXPR bool operator==(dft_iterator const& lhs, dft_iterator const& rhs) {
return lhs.index_ == rhs.index_;
}
friend SPROUT_CONSTEXPR bool operator!=(dft_iterator const& lhs, dft_iterator const& rhs) {
return !(lhs == rhs);
}
friend SPROUT_CONSTEXPR bool operator<(dft_iterator const& lhs, dft_iterator const& rhs) {
return lhs.index_ < rhs.index_;
}
friend SPROUT_CONSTEXPR bool operator>(dft_iterator const& lhs, dft_iterator const& rhs) {
return rhs < lhs;
}
friend SPROUT_CONSTEXPR bool operator<=(dft_iterator const& lhs, dft_iterator const& rhs) {
return !(rhs < lhs);
}
friend SPROUT_CONSTEXPR bool operator>=(dft_iterator const& lhs, dft_iterator const& rhs) {
return !(lhs < rhs);
}
SPROUT_CONSTEXPR reference operator*() const {
return sprout::detail::dft_element_impl(first_, last_, index_, size_);
}
dft_iterator& operator++() {
dft_iterator temp(next());
temp.swap(*this);
return *this;
}
dft_iterator operator++(int) {
dft_iterator result(*this);
++*this;
return result;
}
dft_iterator& operator--() {
dft_iterator temp(prev());
temp.swap(*this);
return *this;
}
dft_iterator operator--(int) {
dft_iterator result(*this);
--*this;
return result;
}
SPROUT_CONSTEXPR dft_iterator operator+(difference_type n) const {
return dft_iterator(first_, last_, index_, index_ + n, size_);
}
SPROUT_CONSTEXPR dft_iterator operator-(difference_type n) const {
return dft_iterator(first_, last_, index_, index_ - n, size_);
}
dft_iterator& operator+=(difference_type n) {
dft_iterator temp(first_, last_, index_, index_ + n, size_);
temp.swap(*this);
return *this;
}
dft_iterator& operator-=(difference_type n) {
dft_iterator temp(first_, last_, index_, index_ - n, size_);
temp.swap(*this);
return *this;
}
SPROUT_CONSTEXPR reference operator[](difference_type n) const {
return sprout::detail::dft_element_impl(first_, last_, index_ + n, size_);
}
friend SPROUT_CONSTEXPR difference_type operator-(dft_iterator const& lhs, dft_iterator const& rhs) {
return lhs.index_ - rhs.index_;
}
friend SPROUT_CONSTEXPR dft_iterator operator+(difference_type n, dft_iterator const& it) {
return it + n;
}
};
//
// make_dft_iterator
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::dft_iterator<Iterator>
make_dft_iterator(Iterator first, Iterator last, typename std::iterator_traits<Iterator>::difference_type i = 0) {
return sprout::dft_iterator<Iterator>(first, last, i);
}
//
// swap
//
template<typename Iterator>
inline void
swap(sprout::dft_iterator<Iterator>& lhs, sprout::dft_iterator<Iterator>& rhs)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
{
lhs.swap(rhs);
}
//
// iterator_distance
//
template<typename Iterator>
inline SPROUT_CONSTEXPR typename std::iterator_traits<sprout::dft_iterator<Iterator> >::difference_type
iterator_distance(sprout::dft_iterator<Iterator> first, sprout::dft_iterator<Iterator> last) {
return last - first;
}
//
// iterator_next
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::dft_iterator<Iterator>
iterator_next(sprout::dft_iterator<Iterator> const& it) {
return it.next();
}
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::dft_iterator<Iterator>
iterator_next(
sprout::dft_iterator<Iterator> const& it,
typename sprout::dft_iterator<Iterator>::difference_type n
)
{
return it + n;
}
//
// iterator_prev
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::dft_iterator<Iterator>
iterator_prev(sprout::dft_iterator<Iterator> const& it) {
return it.prev();
}
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::dft_iterator<Iterator>
iterator_prev(
sprout::dft_iterator<Iterator> const& it,
typename sprout::dft_iterator<Iterator>::difference_type n
)
{
return it - n;
}
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_DFT_ITERATOR_HPP