mirror of
https://github.com/bolero-MURAKAMI/Sprout.git
synced 2025-10-19 13:49:23 +00:00
rewrite sprout::algorithm::join performance
This commit is contained in:
parent
0ceabb5b9b
commit
1ea9d30e2a
145 changed files with 1359 additions and 364 deletions
447
sprout/iterator/size_enum_iterator.hpp
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447
sprout/iterator/size_enum_iterator.hpp
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#ifndef SPROUT_ITERATOR_SIZE_ENUM_ITERATOR_HPP
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#define SPROUT_ITERATOR_SIZE_ENUM_ITERATOR_HPP
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#include <iterator>
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#include <utility>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/iterator/next.hpp>
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#include <sprout/iterator/prev.hpp>
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#include <sprout/iterator/distance.hpp>
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#include <sprout/container/size.hpp>
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namespace sprout {
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//
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// size_enum_iterator
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//
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template<typename Iterator, bool Separated = false>
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class size_enum_iterator
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: public std::iterator<
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typename std::iterator_traits<Iterator>::iterator_category,
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typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type,
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typename std::iterator_traits<Iterator>::difference_type,
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typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type*,
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typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type
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>
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{
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public:
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typedef Iterator iterator_type;
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typedef typename std::iterator_traits<iterator_type>::iterator_category iterator_category;
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typedef typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type value_type;
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typedef value_type reference;
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typedef typename std::iterator_traits<iterator_type>::difference_type difference_type;
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typedef value_type* pointer;
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protected:
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iterator_type current;
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public:
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size_enum_iterator() = default;
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size_enum_iterator(size_enum_iterator const&) = default;
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explicit SPROUT_CONSTEXPR size_enum_iterator(iterator_type it)
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: current(it)
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{}
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template<typename U>
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SPROUT_CONSTEXPR size_enum_iterator(size_enum_iterator<U> const& it)
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: current(it.current)
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{}
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template<typename U>
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size_enum_iterator& operator=(size_enum_iterator<U> const& it) {
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size_enum_iterator temp(it);
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temp.swap(*this);
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return *this;
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}
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SPROUT_CONSTEXPR iterator_type base() const {
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return current;
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}
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SPROUT_CONSTEXPR bool is_separator() const {
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return false;
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}
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SPROUT_CONSTEXPR reference operator*() const {
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return sprout::size(*current);
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}
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SPROUT_CONSTEXPR pointer operator->() const {
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return &sprout::size(*current);
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}
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size_enum_iterator& operator++() {
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++current;
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return *this;
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}
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size_enum_iterator operator++(int) {
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size_enum_iterator result(*this);
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++current;
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return result;
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}
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size_enum_iterator& operator--() {
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--current;
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return *this;
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}
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size_enum_iterator operator--(int) {
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size_enum_iterator temp(*this);
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--current;
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return temp;
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}
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SPROUT_CONSTEXPR size_enum_iterator operator+(difference_type n) const {
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return size_enum_iterator(current + n);
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}
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SPROUT_CONSTEXPR size_enum_iterator operator-(difference_type n) const {
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return size_enum_iterator(current - n);
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}
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size_enum_iterator& operator+=(difference_type n) {
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size_enum_iterator temp(current + n);
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temp.swap(*this);
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return *this;
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}
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size_enum_iterator& operator-=(difference_type n) {
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size_enum_iterator temp(current - n);
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temp.swap(*this);
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return *this;
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}
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SPROUT_CONSTEXPR reference operator[](difference_type n) const {
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return sprout::size(current[n]);
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}
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SPROUT_CONSTEXPR size_enum_iterator next() const {
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return size_enum_iterator(sprout::next(current));
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}
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SPROUT_CONSTEXPR size_enum_iterator prev() const {
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return size_enum_iterator(sprout::prev(current));
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}
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void swap(size_enum_iterator& other) {
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using std::swap;
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swap(current, other.current);
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}
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};
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//
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// size_enum_iterator
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//
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template<typename Iterator>
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class size_enum_iterator<Iterator, true>
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: public std::iterator<
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typename std::iterator_traits<Iterator>::iterator_category,
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typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type,
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typename std::iterator_traits<Iterator>::difference_type,
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typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type*,
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typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type
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>
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{
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public:
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typedef Iterator iterator_type;
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typedef typename std::iterator_traits<iterator_type>::iterator_category iterator_category;
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typedef typename sprout::container_traits<
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typename std::iterator_traits<Iterator>::value_type
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>::difference_type value_type;
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typedef value_type reference;
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typedef typename std::iterator_traits<iterator_type>::difference_type difference_type;
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typedef value_type* pointer;
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protected:
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iterator_type current;
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value_type sep_size;
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bool is_sep;
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public:
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size_enum_iterator() = default;
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size_enum_iterator(size_enum_iterator const&) = default;
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explicit SPROUT_CONSTEXPR size_enum_iterator(iterator_type it, value_type size = 0, bool sep = false)
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: current(it)
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, sep_size(size)
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, is_sep(sep)
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{}
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template<typename U, bool V>
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SPROUT_CONSTEXPR size_enum_iterator(size_enum_iterator<U, V> const& it)
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: current(it.current)
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, sep_size(it.sep_size)
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, is_sep(it.is_sep)
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{}
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template<typename U, bool V>
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size_enum_iterator& operator=(size_enum_iterator<U, V> const& it) {
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size_enum_iterator temp(it);
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temp.swap(*this);
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return *this;
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}
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SPROUT_CONSTEXPR iterator_type base() const {
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return current;
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}
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SPROUT_CONSTEXPR value_type separator_size() const {
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return sep_size;
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}
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SPROUT_CONSTEXPR bool is_separator() const {
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return is_sep;
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}
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SPROUT_CONSTEXPR reference operator*() const {
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return is_sep ? sep_size : sprout::size(*current);
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}
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SPROUT_CONSTEXPR pointer operator->() const {
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return &(is_sep ? sep_size : sprout::size(*current));
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}
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size_enum_iterator& operator++() {
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if (is_sep) {
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++current;
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is_sep = false;
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} else {
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is_sep = true;
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}
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return *this;
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}
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size_enum_iterator operator++(int) {
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size_enum_iterator result(*this);
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if (is_sep) {
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++current;
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is_sep = false;
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} else {
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is_sep = true;
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}
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return result;
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}
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size_enum_iterator& operator--() {
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if (is_sep) {
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is_sep = false;
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} else {
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--current;
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is_sep = true;
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}
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return *this;
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}
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size_enum_iterator operator--(int) {
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size_enum_iterator temp(*this);
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if (is_sep) {
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is_sep = false;
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} else {
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--current;
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is_sep = true;
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}
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return temp;
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}
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SPROUT_CONSTEXPR size_enum_iterator operator+(difference_type n) const {
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return size_enum_iterator(current + (n + is_sep) / 2, sep_size, (n + is_sep) % 2);
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}
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SPROUT_CONSTEXPR size_enum_iterator operator-(difference_type n) const {
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return size_enum_iterator(current - (n - is_sep) / 2, sep_size, (n - is_sep) % 2);
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}
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size_enum_iterator& operator+=(difference_type n) {
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size_enum_iterator temp(current + (n + is_sep) / 2, sep_size, (n + is_sep) % 2);
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temp.swap(*this);
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return *this;
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}
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size_enum_iterator& operator-=(difference_type n) {
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size_enum_iterator temp(current - (n - is_sep) / 2, sep_size, (n - is_sep) % 2);
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temp.swap(*this);
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return *this;
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}
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SPROUT_CONSTEXPR reference operator[](difference_type n) const {
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return sprout::size(current[(n + is_sep) / 2]);
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}
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SPROUT_CONSTEXPR size_enum_iterator next() const {
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return is_sep
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? size_enum_iterator(sprout::next(current), sep_size, false)
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: size_enum_iterator(current, sep_size, true)
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;
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}
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SPROUT_CONSTEXPR size_enum_iterator prev() const {
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return is_sep
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? size_enum_iterator(current, sep_size, false)
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: size_enum_iterator(sprout::prev(current), sep_size, true)
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;
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}
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void swap(size_enum_iterator& other) {
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using std::swap;
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swap(current, other.current);
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swap(sep_size, other.sep_size);
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swap(is_sep, other.is_sep);
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}
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};
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template<
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typename Iterator1, bool Separated1,
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typename Iterator2, bool Separated2
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>
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SPROUT_CONSTEXPR bool operator==(
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sprout::size_enum_iterator<Iterator1, Separated1> const& lhs,
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sprout::size_enum_iterator<Iterator2, Separated2> const& rhs
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)
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{
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return lhs.base() == rhs.base() && lhs.is_separator() == rhs.is_separator();
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}
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template<
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typename Iterator1, bool Separated1,
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typename Iterator2, bool Separated2
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>
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SPROUT_CONSTEXPR bool operator!=(
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sprout::size_enum_iterator<Iterator1, Separated1> const& lhs,
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sprout::size_enum_iterator<Iterator2, Separated2> const& rhs
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)
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{
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return !(lhs == rhs);
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}
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template<
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typename Iterator1, bool Separated1,
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typename Iterator2, bool Separated2
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>
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SPROUT_CONSTEXPR bool operator<(
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sprout::size_enum_iterator<Iterator1, Separated1> const& lhs,
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sprout::size_enum_iterator<Iterator2, Separated2> const& rhs
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)
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{
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return lhs.base() < rhs.base()
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|| (lhs.base() == rhs.base() && !lhs.is_separator() && rhs.is_separator())
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;
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}
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template<
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typename Iterator1, bool Separated1,
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typename Iterator2, bool Separated2
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>
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SPROUT_CONSTEXPR bool operator>(
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sprout::size_enum_iterator<Iterator1, Separated1> const& lhs,
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sprout::size_enum_iterator<Iterator2, Separated2> const& rhs
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)
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{
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return rhs < lhs;
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}
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template<
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typename Iterator1, bool Separated1,
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typename Iterator2, bool Separated2
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>
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SPROUT_CONSTEXPR bool operator<=(
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sprout::size_enum_iterator<Iterator1, Separated1> const& lhs,
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sprout::size_enum_iterator<Iterator2, Separated2> const& rhs
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)
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{
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return !(rhs < lhs);
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}
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template<
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typename Iterator1, bool Separated1,
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typename Iterator2, bool Separated2
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>
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SPROUT_CONSTEXPR bool operator>=(
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sprout::size_enum_iterator<Iterator1, Separated1> const& lhs,
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sprout::size_enum_iterator<Iterator2, Separated2> const& rhs
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)
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{
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return !(lhs < rhs);
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}
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template<typename Iterator1, typename Iterator2>
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SPROUT_CONSTEXPR decltype(std::declval<Iterator1>() - std::declval<Iterator2>()) operator-(
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sprout::size_enum_iterator<Iterator1> const& lhs,
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sprout::size_enum_iterator<Iterator2> const& rhs
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)
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{
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return lhs.base() - rhs.base();
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}
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template<typename Iterator1, typename Iterator2>
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SPROUT_CONSTEXPR decltype(std::declval<Iterator1>() - std::declval<Iterator2>()) operator-(
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sprout::size_enum_iterator<Iterator1, true> const& lhs,
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sprout::size_enum_iterator<Iterator2, true> const& rhs
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)
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{
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return lhs.base() - rhs.base() + (
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lhs.is_separator()
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? rhs.is_separator() ? 0 : -1
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: rhs.is_separator() ? 1 : 0
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)
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;
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}
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template<typename Iterator, bool Separated>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator, Separated> operator+(
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typename sprout::size_enum_iterator<Iterator, Separated>::difference_type n,
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sprout::size_enum_iterator<Iterator, Separated> const& it
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)
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{
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return it + n;
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}
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//
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// make_size_enum_iterator
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//
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template<typename Iterator>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator>
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make_size_enum_iterator(Iterator it) {
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return sprout::size_enum_iterator<Iterator>(it);
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}
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template<typename Iterator>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator, true>
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make_size_enum_iterator(
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Iterator it,
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typename sprout::size_enum_iterator<Iterator, true>::value_type sep_size,
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bool sep = false
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)
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{
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return sprout::size_enum_iterator<Iterator, true>(it, sep_size, sep);
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}
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//
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// swap
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//
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template<typename Iterator, bool Separated>
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void swap(
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sprout::size_enum_iterator<Iterator, Separated>& lhs,
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sprout::size_enum_iterator<Iterator, Separated>& rhs
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)
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SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
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{
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lhs.swap(rhs);
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}
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//
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// next
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//
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template<typename Iterator, bool Separated>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator, Separated> next(
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sprout::size_enum_iterator<Iterator, Separated> const& it
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)
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{
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return it.next();
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}
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template<typename Iterator, bool Separated>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator, Separated> next(
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sprout::size_enum_iterator<Iterator, Separated> const& it,
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typename sprout::size_enum_iterator<Iterator, Separated>::difference_type n
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)
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{
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return it + n;
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}
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//
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// prev
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//
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template<typename Iterator, bool Separated>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator, Separated> prev(
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sprout::size_enum_iterator<Iterator, Separated> const& it
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)
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{
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return it.prev();
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}
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template<typename Iterator, bool Separated>
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SPROUT_CONSTEXPR sprout::size_enum_iterator<Iterator, Separated> prev(
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sprout::size_enum_iterator<Iterator, Separated> const& it,
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typename sprout::size_enum_iterator<Iterator, Separated>::difference_type n
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)
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{
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return it - n;
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}
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//
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// distance
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//
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template<typename Iterator, bool Separated>
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SPROUT_CONSTEXPR typename std::iterator_traits<sprout::size_enum_iterator<Iterator, Separated> >::difference_type
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distance(
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sprout::size_enum_iterator<Iterator, Separated> first,
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sprout::size_enum_iterator<Iterator, Separated> last
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)
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{
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return last - first;
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ITERATOR_SIZE_ENUM_ITERATOR_HPP
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143
sprout/iterator/traits.hpp
Normal file
143
sprout/iterator/traits.hpp
Normal file
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#ifndef SPROUT_ITERATOR_TRAITS_HPP
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#define SPROUT_ITERATOR_TRAITS_HPP
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#include <iterator>
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#include <type_traits>
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#include <sprout/config.hpp>
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#include <sprout/type_traits/has_xxx.hpp>
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namespace sprout {
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namespace detail {
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// has_iterator_category
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SPROUT_HAS_XXX_TYPE_DEF_LAZY(iterator_category);
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} // namespace detail
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//
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// is_iterator
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//
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template<typename Iterator>
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struct is_iterator
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: sprout::detail::has_iterator_category<std::iterator_traits<Iterator> >
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{};
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namespace detail {
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template<typename Iterator, typename = void>
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struct is_input_iterator_impl
|
||||
: std::false_type
|
||||
{};
|
||||
template<typename Iterator>
|
||||
struct is_input_iterator_impl<
|
||||
Iterator,
|
||||
typename std::enable_if<sprout::is_iterator<Iterator>::value>::type
|
||||
>
|
||||
: std::is_convertible<
|
||||
typename std::iterator_traits<Iterator>::iterator_category,
|
||||
std::input_iterator_tag
|
||||
>
|
||||
{};
|
||||
} // namespace detail
|
||||
//
|
||||
// is_input_iterator
|
||||
//
|
||||
template<typename Iterator>
|
||||
struct is_input_iterator
|
||||
: sprout::detail::is_input_iterator_impl<Iterator>
|
||||
{};
|
||||
|
||||
namespace detail {
|
||||
template<typename Iterator, typename = void>
|
||||
struct is_output_iterator_impl
|
||||
: std::false_type
|
||||
{};
|
||||
template<typename Iterator>
|
||||
struct is_output_iterator_impl<
|
||||
Iterator,
|
||||
typename std::enable_if<sprout::is_iterator<Iterator>::value>::type
|
||||
>
|
||||
: std::is_convertible<
|
||||
typename std::iterator_traits<Iterator>::iterator_category,
|
||||
std::output_iterator_tag
|
||||
>
|
||||
{};
|
||||
} // namespace detail
|
||||
//
|
||||
// is_output_iterator
|
||||
//
|
||||
template<typename Iterator>
|
||||
struct is_output_iterator
|
||||
: sprout::detail::is_output_iterator_impl<Iterator>
|
||||
{};
|
||||
|
||||
namespace detail {
|
||||
template<typename Iterator, typename = void>
|
||||
struct is_forward_iterator_impl
|
||||
: std::false_type
|
||||
{};
|
||||
template<typename Iterator>
|
||||
struct is_forward_iterator_impl<
|
||||
Iterator,
|
||||
typename std::enable_if<sprout::is_iterator<Iterator>::value>::type
|
||||
>
|
||||
: std::is_convertible<
|
||||
typename std::iterator_traits<Iterator>::iterator_category,
|
||||
std::forward_iterator_tag
|
||||
>
|
||||
{};
|
||||
} // namespace detail
|
||||
//
|
||||
// is_forward_iterator
|
||||
//
|
||||
template<typename Iterator>
|
||||
struct is_forward_iterator
|
||||
: sprout::detail::is_forward_iterator_impl<Iterator>
|
||||
{};
|
||||
|
||||
namespace detail {
|
||||
template<typename Iterator, typename = void>
|
||||
struct is_bidirectional_iterator_impl
|
||||
: std::false_type
|
||||
{};
|
||||
template<typename Iterator>
|
||||
struct is_bidirectional_iterator_impl<
|
||||
Iterator,
|
||||
typename std::enable_if<sprout::is_iterator<Iterator>::value>::type
|
||||
>
|
||||
: std::is_convertible<
|
||||
typename std::iterator_traits<Iterator>::iterator_category,
|
||||
std::bidirectional_iterator_tag
|
||||
>
|
||||
{};
|
||||
} // namespace detail
|
||||
//
|
||||
// is_bidirectional_iterator
|
||||
//
|
||||
template<typename Iterator>
|
||||
struct is_bidirectional_iterator
|
||||
: sprout::detail::is_bidirectional_iterator_impl<Iterator>
|
||||
{};
|
||||
|
||||
namespace detail {
|
||||
template<typename Iterator, typename = void>
|
||||
struct is_random_access_iterator_impl
|
||||
: std::false_type
|
||||
{};
|
||||
template<typename Iterator>
|
||||
struct is_random_access_iterator_impl<
|
||||
Iterator,
|
||||
typename std::enable_if<sprout::is_iterator<Iterator>::value>::type
|
||||
>
|
||||
: std::is_convertible<
|
||||
typename std::iterator_traits<Iterator>::iterator_category,
|
||||
std::random_access_iterator_tag
|
||||
>
|
||||
{};
|
||||
} // namespace detail
|
||||
//
|
||||
// is_random_access_iterator
|
||||
//
|
||||
template<typename Iterator>
|
||||
struct is_random_access_iterator
|
||||
: sprout::detail::is_random_access_iterator_impl<Iterator>
|
||||
{};
|
||||
} // namespace sprout
|
||||
|
||||
#endif // #ifndef SPROUT_ITERATOR_TRAITS_HPP
|
Loading…
Add table
Add a link
Reference in a new issue