mirror/Sprout
1
0
Fork 0
mirror of https://github.com/bolero-MURAKAMI/Sprout.git synced 2025-07-16 15:14:13 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

add some compost effects.

Browse source
This commit is contained in:
bolero-MURAKAMI 2012-11-09 22:33:11 +09:00
parent d01ee064e2
commit c7e6be98bb
20 changed files with 1815 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

239
sprout/iterator/indexed_iterator.hpp Normal file
View file

@ -0,0 +1,239 @@
#ifndef SPROUT_ITERATOR_INDEXED_ITERATOR_HPP
#define SPROUT_ITERATOR_INDEXED_ITERATOR_HPP
#include <iterator>
#include <utility>
#include <sprout/config.hpp>
#include <sprout/iterator/next.hpp>
#include <sprout/iterator/prev.hpp>
#include <sprout/iterator/distance.hpp>
#include <sprout/utility/swap.hpp>
namespace sprout {
//
// indexed_iterator
//
template<typename Iterator>
class indexed_iterator
: public std::iterator<
typename std::iterator_traits<Iterator>::iterator_category,
typename std::iterator_traits<Iterator>::value_type,
typename std::iterator_traits<Iterator>::difference_type,
typename std::iterator_traits<Iterator>::pointer,
typename std::iterator_traits<Iterator>::reference
>
{
public:
typedef Iterator iterator_type;
typedef typename std::iterator_traits<iterator_type>::iterator_category iterator_category;
typedef typename std::iterator_traits<iterator_type>::value_type value_type;
typedef typename std::iterator_traits<iterator_type>::difference_type difference_type;
typedef typename std::iterator_traits<iterator_type>::pointer pointer;
typedef typename std::iterator_traits<iterator_type>::reference reference;
typedef difference_type index_type;
protected:
iterator_type current;
index_type idx;
public:
indexed_iterator() = default;
SPROUT_CONSTEXPR indexed_iterator(indexed_iterator const& other)
: current(other.current)
, idx(other.idx)
{}
explicit SPROUT_CONSTEXPR indexed_iterator(iterator_type it, index_type idx = 0)
: current(it)
, idx(idx)
{}
template<typename U>
SPROUT_CONSTEXPR indexed_iterator(indexed_iterator<U> const& it)
: current(it.base())
, idx(it.index())
{}
template<typename U>
indexed_iterator& operator=(indexed_iterator<U> const& it) {
indexed_iterator temp(it);
temp.swap(*this);
return *this;
}
SPROUT_CONSTEXPR iterator_type base() const {
return current;
}
SPROUT_CONSTEXPR index_type index() const {
return idx;
}
SPROUT_CONSTEXPR reference operator*() const {
return *current;
}
SPROUT_CONSTEXPR pointer operator->() const {
return &*current;
}
indexed_iterator& operator++() {
++current;
++idx;
return *this;
}
indexed_iterator operator++(int) {
indexed_iterator result(*this);
++current;
++idx;
return result;
}
indexed_iterator& operator--() {
--current;
--idx;
return *this;
}
indexed_iterator operator--(int) {
indexed_iterator temp(*this);
--current;
--idx;
return temp;
}
SPROUT_CONSTEXPR indexed_iterator operator+(difference_type n) const {
return indexed_iterator(current + n, idx + n);
}
SPROUT_CONSTEXPR indexed_iterator operator-(difference_type n) const {
return indexed_iterator(current - n, idx - n);
}
indexed_iterator& operator+=(difference_type n) {
indexed_iterator temp(current + n, idx + n);
temp.swap(*this);
return *this;
}
indexed_iterator& operator-=(difference_type n) {
indexed_iterator temp(current - n, idx - n);
temp.swap(*this);
return *this;
}
SPROUT_CONSTEXPR reference operator[](difference_type n) const {
return *(current + n);
}
SPROUT_CONSTEXPR indexed_iterator next() const {
return indexed_iterator(sprout::next(current), idx + 1);
}
SPROUT_CONSTEXPR indexed_iterator prev() const {
return indexed_iterator(sprout::prev(current), idx - 1);
}
void swap(indexed_iterator& other)
SPROUT_NOEXCEPT_EXPR(
SPROUT_NOEXCEPT_EXPR(swap(current, other.current))
&& SPROUT_NOEXCEPT_EXPR(swap(idx, other.idx))
)
{
swap(current, other.current);
swap(idx, other.idx);
}
};
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR bool
operator==(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return lhs.base() == rhs.base();
}
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR bool
operator!=(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return !(lhs == rhs);
}
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR bool
operator<(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return lhs.base() < rhs.base();
}
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR bool
operator>(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return rhs < lhs;
}
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR bool
operator<=(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return !(rhs < lhs);
}
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR bool
operator>=(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return !(lhs < rhs);
}
template<typename Iterator1, typename Iterator2>
inline SPROUT_CONSTEXPR decltype(std::declval<Iterator1>() - std::declval<Iterator2>())
operator-(sprout::indexed_iterator<Iterator1> const& lhs, sprout::indexed_iterator<Iterator2> const& rhs) {
return lhs.base() - rhs.base();
}
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::indexed_iterator<Iterator>
operator+(
typename sprout::indexed_iterator<Iterator>::difference_type n,
sprout::indexed_iterator<Iterator> const& it
)
{
return it + n;
}
//
// make_indexed_iterator
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::indexed_iterator<Iterator>
make_indexed_iterator(Iterator it, typename sprout::indexed_iterator<Iterator>::index_type idx = 0) {
return sprout::indexed_iterator<Iterator>(it, idx);
}
//
// swap
//
template<typename Iterator>
inline void
swap(sprout::indexed_iterator<Iterator>& lhs, sprout::indexed_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::indexed_iterator<Iterator> >::difference_type
iterator_distance(sprout::indexed_iterator<Iterator> first, sprout::indexed_iterator<Iterator> last) {
return last - first;
}
//
// iterator_next
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::indexed_iterator<Iterator>
iterator_next(sprout::indexed_iterator<Iterator> const& it) {
return it.next();
}
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::indexed_iterator<Iterator>
iterator_next(
sprout::indexed_iterator<Iterator> const& it,
typename sprout::indexed_iterator<Iterator>::difference_type n
)
{
return it + n;
}
//
// iterator_prev
//
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::indexed_iterator<Iterator>
iterator_prev(sprout::indexed_iterator<Iterator> const& it) {
return it.prev();
}
template<typename Iterator>
inline SPROUT_CONSTEXPR sprout::indexed_iterator<Iterator>
iterator_prev(
sprout::indexed_iterator<Iterator> const& it,
typename sprout::indexed_iterator<Iterator>::difference_type n
)
{
return it - n;
}
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_INDEXED_ITERATOR_HPP