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add back_inserter, front_inserter

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bolero-MURAKAMI 2013-02-26 10:43:27 +09:00
parent 7c706381d4
commit 74e83e31a7
70 changed files with 1094 additions and 186 deletions
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166
sprout/iterator/front_insert_iterator.hpp Normal file
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#ifndef SPROUT_ITERATOR_FRONT_INSERT_ITERATOR_HPP
#define SPROUT_ITERATOR_FRONT_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/forward.hpp>
#include <sprout/utility/move.hpp>
#include <sprout/utility/limited.hpp>
#include <sprout/type_traits/arithmetic_promote.hpp>
namespace sprout {
//
// front_insert_iterator
//
template<typename Container>
class front_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;
public:
SPROUT_CONSTEXPR front_insert_iterator() = default;
explicit SPROUT_CONSTEXPR front_insert_iterator(param_type x)
: base_type(x)
{}
SPROUT_CONSTEXPR front_insert_iterator(front_insert_iterator const&) = default;
front_insert_iterator& operator=(typename container_type::value_type const& value) {
container->push_front(value);
return *this;
}
front_insert_iterator& operator=(typename container_type::value_type&& value) {
container->push_front(sprout::move(value));
return *this;
}
SPROUT_CONSTEXPR front_insert_iterator const& operator*() const {
return *this;
}
front_insert_iterator& operator*() {
return *this;
}
front_insert_iterator& operator++() {
return *this;
}
front_insert_iterator operator++(int) {
return *this;
}
void swap(front_insert_iterator& other)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(base_type::swap(other)))
{
base_type::swap(other);
}
};
//
// swap
//
template<typename Container>
inline void
swap(sprout::front_insert_iterator<Container>& lhs, sprout::front_insert_iterator<Container>& rhs)
SPROUT_NOEXCEPT_EXPR(SPROUT_NOEXCEPT_EXPR(lhs.swap(rhs)))
{
lhs.swap(rhs);
}
//
// front_inserter
//
template<typename Container>
inline SPROUT_CONSTEXPR sprout::front_insert_iterator<Container>
front_inserter(Container& x) {
return sprout::front_insert_iterator<Container>(x);
}
template<typename Container>
inline SPROUT_CONSTEXPR sprout::front_insert_iterator<Container const>
front_inserter(Container const& x) {
return sprout::front_insert_iterator<Container const>(x);
}
//
// container_construct_traits
//
template<typename Container>
struct container_construct_traits<sprout::front_insert_iterator<Container> > {
public:
typedef typename sprout::container_construct_traits<Container>::copied_type copied_type;
private:
template<typename Cont, typename InputIterator>
static SPROUT_CONSTEXPR copied_type
remake_impl(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), sprout::begin(cont),
first, first, last
),
sprout::make_insert_range_iterator(
sprout::internal_end(cont), sprout::begin(cont),
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(sprout::get_internal(sprout::forward<Cont>(cont)), size, sprout::forward<Args>(args)...);
}
};
//
// container_fitness_traits
//
template<typename Container>
struct container_fitness_traits<sprout::front_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::front_insert_iterator<Container> >
: public sprout::sub_container_traits<sprout::container_holder<Container> >
{};
} // namespace sprout
#endif // #ifndef SPROUT_ITERATOR_FRONT_INSERT_ITERATOR_HPP