Sprout/sprout/algorithm/fixed/copy.hpp
2011-09-03 22:26:26 +09:00

61 lines
1.9 KiB
C++

#ifndef SPROUT_ALGORITHM_FIXED_COPY_HPP
#define SPROUT_ALGORITHM_FIXED_COPY_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/algorithm/fixed/result_of.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace detail {
template<typename Iterator, typename Result, std::ptrdiff_t... Indexes>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type copy_impl(
Iterator first,
Iterator last,
Result const& result,
sprout::index_tuple<Indexes...>,
typename sprout::fixed_container_traits<Result>::difference_type offset,
typename sprout::fixed_container_traits<Result>::size_type size,
typename sprout::fixed_container_traits<Result>::size_type input_size
)
{
return sprout::remake_clone<Result, Result>(
result,
sprout::size(result),
(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
? *(first + Indexes - offset)
: *(sprout::fixed_begin(result) + Indexes)
)...
);
}
} // namespace detail
//
// copy
//
template<typename Iterator, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fixed::result_of::algorithm<Result>::type copy(
Iterator first,
Iterator last,
Result const& result
)
{
return sprout::fixed::detail::copy_impl(
first,
last,
result,
typename sprout::index_range<0, sprout::fixed_container_traits<Result>::fixed_size>::type(),
sprout::fixed_begin_offset(result),
sprout::size(result),
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(first, last)
);
}
} // namespace fixed
using sprout::fixed::copy;
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_COPY_HPP