Sprout/sprout/operation/fixed/append.hpp
2011-10-30 17:40:35 +09:00

99 lines
3.4 KiB
C++

#ifndef SPROUT_OPERATION_FIXED_APPEND_HPP
#define SPROUT_OPERATION_FIXED_APPEND_HPP
#include <cstddef>
#include <sprout/config.hpp>
#include <sprout/index_tuple.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include <sprout/iterator/operation.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace result_of {
//
// append
//
template<typename Container, typename Input>
struct append {
public:
typedef typename sprout::rebind_fixed_size<
Container
>::template apply<
sprout::fixed_container_traits<Container>::fixed_size + sprout::fixed_container_traits<Input>::fixed_size
>::type type;
};
} // namespace result_of
namespace detail {
template<typename Result, typename Container, typename Input, std::ptrdiff_t... Indexes>
SPROUT_CONSTEXPR inline Result append_impl(
Container const& cont,
sprout::index_tuple<Indexes...>,
typename sprout::fixed_container_traits<Container>::difference_type pos,
typename sprout::fixed_container_traits<Container>::difference_type size,
Input const& input
)
{
return sprout::remake_clone<Result>(
cont,
sprout::size(cont) + sprout::size(input),
(Indexes < sprout::fixed_container_traits<Container>::fixed_size + size
? (Indexes < pos
? *sprout::next(sprout::fixed_begin(cont), Indexes)
: Indexes < pos + size
? *sprout::next(sprout::begin(input), Indexes - pos)
: *sprout::next(sprout::fixed_begin(cont), Indexes - size)
)
: typename sprout::fixed_container_traits<Result>::value_type()
)...
);
}
} // namespace detail
//
// append
//
template<typename Container, typename Input>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::append<Container, Input>::type append(
Container const& cont,
typename sprout::fixed_container_traits<Container>::const_iterator pos,
Input const& input
)
{
return sprout::fixed::detail::append_impl<typename sprout::fixed::result_of::append<Container, Input>::type>(
cont,
typename sprout::index_range<0, sprout::fixed_container_traits<typename sprout::fixed::result_of::append<Container, Input>::type>::fixed_size>::type(),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::fixed_begin(cont), pos),
sprout::size(input),
input
);
}
//
// append
//
template<typename Container, typename Input>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::append<Container, Input>::type append(
Container const& cont,
typename sprout::fixed_container_traits<Container>::difference_type pos,
Input const& input
)
{
return sprout::fixed::detail::append_impl<typename sprout::fixed::result_of::append<Container, Input>::type>(
cont,
typename sprout::index_range<0, sprout::fixed_container_traits<typename sprout::fixed::result_of::append<Container, Input>::type>::fixed_size>::type(),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(sprout::fixed_begin(cont), sprout::next(sprout::begin(cont), pos)),
sprout::size(input),
input
);
}
} // namespace fixed
namespace result_of {
using sprout::fixed::result_of::append;
} // namespace result_of
using sprout::fixed::append;
} // namespace sprout
#endif // #ifndef SPROUT_OPERATION_FIXED_APPEND_HPP