Sprout/sprout/operation/fixed/insert.hpp
2012-05-14 11:33:36 +09:00

102 lines
3.5 KiB
C++

#ifndef SPROUT_OPERATION_FIXED_INSERT_HPP
#define SPROUT_OPERATION_FIXED_INSERT_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include <sprout/detail/param_at.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
namespace sprout {
namespace fixed {
namespace result_of {
//
// insert
//
template<typename Container, typename T, typename... Values>
struct insert {
public:
typedef typename sprout::container_transform_traits<
Container
>::template rebind_size<
sprout::container_traits<Container>::static_size + 1 + sizeof...(Values)
>::type type;
};
} // namespace result_of
namespace detail {
template<typename Result, typename Container, typename T, typename... Values, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR Result insert_impl(
Container const& cont,
sprout::index_tuple<Indexes...>,
typename sprout::container_traits<Container>::difference_type pos,
T const& v,
Values const&... values
)
{
return sprout::remake<Result>(
cont,
sprout::size(cont) + 1 + sizeof...(Values),
(Indexes < sprout::container_traits<Container>::static_size + 1 + sizeof...(Values)
? (Indexes < pos
? *sprout::next(sprout::internal_begin(cont), Indexes)
: Indexes < pos + 1 + sizeof...(Values)
? sprout::detail::param_at<typename sprout::container_traits<Result>::value_type>(Indexes - pos, v, values...)
: *sprout::next(sprout::internal_begin(cont), Indexes - (1 + sizeof...(Values)))
)
: typename sprout::container_traits<Result>::value_type()
)...
);
}
} // namespace detail
//
// insert
//
template<typename Container, typename T, typename... Values>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::insert<Container, T, Values...>::type insert(
Container const& cont,
typename sprout::container_traits<Container>::const_iterator pos,
T const& v,
Values const&... values
)
{
return sprout::fixed::detail::insert_impl<typename sprout::fixed::result_of::insert<Container, T, Values...>::type>(
cont,
sprout::index_range<0, sprout::container_traits<typename sprout::fixed::result_of::insert<Container, T, Values...>::type>::static_size>::make(),
NS_SSCRISK_CEL_OR_SPROUT::distance(sprout::internal_begin(cont), pos),
v,
values...
);
}
//
// insert
//
template<typename Container, typename T, typename... Values>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::insert<Container, T, Values...>::type insert(
Container const& cont,
typename sprout::container_traits<Container>::difference_type pos,
T const& v,
Values const&... values
)
{
return sprout::fixed::detail::insert_impl<typename sprout::fixed::result_of::insert<Container, T, Values...>::type>(
cont,
sprout::index_range<0, sprout::container_traits<typename sprout::fixed::result_of::insert<Container, T, Values...>::type>::static_size>::make(),
NS_SSCRISK_CEL_OR_SPROUT::distance(sprout::internal_begin(cont), sprout::next(sprout::begin(cont), pos)),
v,
values...
);
}
} // namespace fixed
namespace result_of {
using sprout::fixed::result_of::insert;
} // namespace result_of
using sprout::fixed::insert;
} // namespace sprout
#endif // #ifndef SPROUT_OPERATION_FIXED_INSERT_HPP