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add inserter

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fix type_traits is_iterator
This commit is contained in:
bolero-MURAKAMI 2013-02-26 12:39:03 +09:00
parent 74e83e31a7
commit bf8c46b203
4 changed files with 235 additions and 25 deletions
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175
sprout/iterator/insert_iterator.hpp Normal file
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#ifndef SPROUT_ITERATOR_INSERT_ITERATOR_HPP
#define SPROUT_ITERATOR_INSERT_ITERATOR_HPP
#include <iterator>
#include <sprout/config.hpp>
#include <sprout/iterator/next.hpp>
#include <sprout/iterator/prev.hpp>
#include <sprout/iterator/distance.hpp>
#include <sprout/iterator/insert_range_iterator.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/container/container_holder.hpp>
#include <sprout/utility/swap.hpp>
#include <sprout/utility/forward.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/utility/limited.hpp>
#include <sprout/type_traits/arithmetic_promote.hpp>
namespace sprout {
//
// insert_iterator
//
template<typename Container>
class insert_iterator
: public std::iterator<std::output_iterator_tag, void, void, void, void>
, public sprout::container_holder<Container>
{
private:
typedef sprout::container_holder<Container> base_type;
public:
typedef typename base_type::container_type container_type;
typedef typename base_type::internal_type internal_type;
typedef typename base_type::iterator iterator;
typedef typename base_type::const_iterator const_iterator;
typedef typename base_type::reference reference;
typedef typename base_type::const_reference const_reference;
typedef typename base_type::size_type size_type;
typedef typename base_type::difference_type difference_type;
typedef typename base_type::pointer pointer;
typedef typename base_type::const_pointer const_pointer;
typedef typename base_type::param_type param_type;
typedef typename base_type::const_param_type const_param_type;
typedef typename base_type::holder_type holder_type;
protected:
using base_type::container;
iterator iter;
public:
SPROUT_CONSTEXPR insert_iterator() = default;
SPROUT_CONSTEXPR insert_iterator(param_type x, iterator pos)
: base_type(x), iter(pos)
{}
SPROUT_CONSTEXPR insert_iterator(insert_iterator const&) = default;
SPROUT_CONSTEXPR iterator position() const {
return iter;
}
insert_iterator& operator=(typename container_type::value_type const& value) {
container->insert(iter, value);
return *this;
}
insert_iterator& operator=(typename container_type::value_type&& value) {
container->insert(iter, sprout::move(value));
return *this;
}
SPROUT_CONSTEXPR insert_iterator const& operator*() const {
return *this;
}
insert_iterator& operator*() {
return *this;
}
insert_iterator& operator++() {
return *this;
}
insert_iterator operator++(int) {
return *this;
}
void swap(insert_iterator& other)
SPROUT_NOEXCEPT_EXPR(
SPROUT_NOEXCEPT_EXPR(base_type::swap(other))
&& SPROUT_NOEXCEPT_EXPR(sprout::swap(other.iter, iter))
)
{
base_type::swap(other);
sprout::swap(other.iter, iter);
}
};
//
// swap
//
template<typename Container>
inline void
swap(sprout::insert_iterator<Container>& lhs, sprout::insert_iterator<Container>& rhs)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
{
lhs.swap(rhs);
}
//
// inserter
//
template<typename Container>
inline SPROUT_CONSTEXPR sprout::insert_iterator<Container>
inserter(Container& x, typename sprout::insert_iterator<Container>::iterator pos) {
return sprout::insert_iterator<Container>(x, pos);
}
template<typename Container>
inline SPROUT_CONSTEXPR sprout::insert_iterator<Container const>
inserter(Container const& x, typename sprout::insert_iterator<Container const>::iterator pos) {
return sprout::insert_iterator<Container const>(x, pos);
}
//
// container_construct_traits
//
template<typename Container>
struct container_construct_traits<sprout::insert_iterator<Container> > {
public:
typedef typename sprout::container_construct_traits<Container>::copied_type copied_type;
private:
template<typename Iterator, typename Cont, typename InputIterator>
static SPROUT_CONSTEXPR copied_type
remake_impl(Iterator pos, Cont&& cont, typename sprout::container_traits<Container>::difference_type size, InputIterator first, InputIterator last) {
return sprout::make<copied_type>(
sprout::make_insert_range_iterator(
sprout::internal_begin(cont), pos,
first, first, last
),
sprout::make_insert_range_iterator(
sprout::internal_end(cont), pos,
last, first, last
)
);
}
public:
template<typename Cont>
static SPROUT_CONSTEXPR copied_type
deep_copy(Cont&& cont) {
return sprout::deep_copy(sprout::get_internal(sprout::forward<Cont>(cont)));
}
template<typename... Args>
static SPROUT_CONSTEXPR copied_type
make(Args&&... args) {
return sprout::make<copied_type>(sprout::forward<Args>(args)...);
}
template<typename Cont, typename... Args>
static SPROUT_CONSTEXPR copied_type
remake(Cont&& cont, typename sprout::container_traits<Container>::difference_type size, Args&&... args) {
return remake_impl(cont.position(), sprout::get_internal(sprout::forward<Cont>(cont)), size, sprout::forward<Args>(args)...);
}
};
//
// container_fitness_traits
//
template<typename Container>
struct container_fitness_traits<sprout::insert_iterator<Container> > {
public:
template<typename Cont>
static SPROUT_CONSTEXPR typename sprout::container_traits<Container>::difference_type
fit_size(Cont&& cont, typename sprout::container_traits<Container>::difference_type size) {
return size + sprout::size(sprout::forward<Cont>(cont));
}
};
//
// sub_container_traits
//
template<typename Container>
struct sub_container_traits<sprout::insert_iterator<Container> >
: public sprout::sub_container_traits<sprout::container_holder<Container> >
{};
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_INSERT_ITERATOR_HPP