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bolero-MURAKAMI 2011-09-01 02:48:32 +00:00
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sprout/operation/fixed/insert_n.hpp Normal file
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#ifndef SPROUT_OPERATION_FIXED_INSERT_N_HPP
#define SPROUT_OPERATION_FIXED_INSERT_N_HPP
#include <cstddef>
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include <sprout/operation/fixed/insert.hpp>
#include <sprout/detail/param_at.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace result_of {
//
// insert_n
//
template<std::size_t N, typename Container, typename T, typename... Values>
struct insert_n {
public:
typedef typename sprout::rebind_fixed_size<
typename sprout::fixed_container_traits<Container>::fixed_container_type
>::template apply<
sprout::fixed_container_traits<Container>::fixed_size + (1 + sizeof...(Values)) * N
>::type type;
};
} // namespace result_of
namespace detail {
template<std::size_t N, typename Result, typename Container, typename T, typename... Values, std::ptrdiff_t... Indexes>
SPROUT_CONSTEXPR inline Result insert_n_impl(
Container const& cont,
sprout::index_tuple<Indexes...>,
typename sprout::fixed_container_traits<Container>::difference_type pos,
T const& v,
Values const&... values
)
{
return Result{
(Indexes < sprout::fixed_container_traits<Container>::fixed_size + (1 + sizeof...(Values)) * N
? (Indexes < pos
? *(sprout::fixed_begin(cont) + Indexes)
: Indexes < pos + (1 + sizeof...(Values)) * N
? sprout::detail::param_at<typename sprout::fixed_container_traits<Result>::value_type>((Indexes - pos) % (1 + sizeof...(Values)), v, values...)
: *(sprout::fixed_begin(cont) + Indexes - (1 + sizeof...(Values)) * N)
)
: typename sprout::fixed_container_traits<Result>::value_type{}
)...
};
}
} // namespace detail
//
// insert_n
//
template<std::size_t N, typename Container, typename T, typename... Values>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::insert_n<N, Container, T, Values...>::type insert_n(
Container const& cont,
typename sprout::fixed_container_traits<Container>::const_iterator pos,
T const& v,
Values const&... values
)
{
return sprout::fixed::detail::insert_n_impl<N, typename sprout::fixed::result_of::insert_n<N, Container, T, Values...>::type>(
cont,
typename sprout::index_range<0, sprout::fixed_container_traits<typename sprout::fixed::result_of::insert_n<N, Container, T, Values...>::type>::fixed_size>::type(),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::fixed_begin(cont), pos),
v,
values...
);
}
//
// insert_n
//
template<std::size_t N, typename Container, typename T, typename... Values>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::insert_n<N, Container, T, Values...>::type insert_n(
Container const& cont,
typename sprout::fixed_container_traits<Container>::difference_type pos,
T const& v,
Values const&... values
)
{
return sprout::fixed::detail::insert_n_impl<N, typename sprout::fixed::result_of::insert_n<N, Container, T, Values...>::type>(
cont,
typename sprout::index_range<0, sprout::fixed_container_traits<typename sprout::fixed::result_of::insert_n<N, Container, T, Values...>::type>::fixed_size>::type(),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::fixed_begin(cont), sprout::begin(cont) + pos),
v,
values...
);
}
} // namespace fixed
} // namespace sprout
#endif // #ifndef SPROUT_OPERATION_FIXED_INSERT_N_HPP