Sprout/sprout/algorithm/fixed/reverse_copy.hpp
bolero-MURAKAMI 0c00166c5f fix container_traits for array-like classes
fix coding style algorithm/
2012-09-29 17:10:46 +09:00

105 lines
4.2 KiB
C++

#ifndef SPROUT_ALGORITHM_FIXED_REVERSE_COPY_HPP
#define SPROUT_ALGORITHM_FIXED_REVERSE_COPY_HPP
#include <iterator>
#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/algorithm/fixed/result_of.hpp>
#include <sprout/detail/container_complate.hpp>
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
namespace sprout {
namespace fixed {
namespace detail {
template<typename RandomAccessIterator, typename Result, sprout::index_t... Indexes>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
reverse_copy_impl_ra(
RandomAccessIterator first, RandomAccessIterator last, Result const& result,
sprout::index_tuple<Indexes...>,
typename sprout::container_traits<Result>::difference_type offset,
typename sprout::container_traits<Result>::size_type size,
typename sprout::container_traits<Result>::size_type input_size
)
{
return sprout::remake<Result>(
result,
sprout::size(result),
(Indexes >= offset && Indexes < offset + size && Indexes < offset + input_size
? last[-(1 + Indexes - offset)]
: *sprout::next(sprout::internal_begin(result), Indexes)
)...
);
}
template<typename RandomAccessIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
reverse_copy(
RandomAccessIterator first, RandomAccessIterator last, Result const& result,
std::random_access_iterator_tag*
)
{
return sprout::fixed::detail::reverse_copy_impl_ra(
first, last, result,
sprout::index_range<0, sprout::container_traits<Result>::static_size>::make(),
sprout::internal_begin_offset(result),
sprout::size(result),
NS_SSCRISK_CEL_OR_SPROUT::distance(first, last)
);
}
template<typename BidirectionalIterator, typename Result, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size == sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type
reverse_copy_impl(
BidirectionalIterator first, BidirectionalIterator last, Result const& result,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return sprout::remake<Result>(result, sprout::size(result), args...);
}
template<typename BidirectionalIterator, typename Result, typename... Args>
inline SPROUT_CONSTEXPR typename std::enable_if<
sprout::container_traits<Result>::static_size != sizeof...(Args),
typename sprout::fixed::result_of::algorithm<Result>::type
>::type
reverse_copy_impl(
BidirectionalIterator first, BidirectionalIterator last, Result const& result,
typename sprout::container_traits<Result>::size_type size,
Args const&... args
)
{
return first != last && sizeof...(Args) < size
? sprout::fixed::detail::reverse_copy_impl(first, sprout::prev(last), result, size, args..., *sprout::prev(last))
: sprout::detail::container_complate(result, args...)
;
}
template<typename BidirectionalIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
reverse_copy(
BidirectionalIterator first, BidirectionalIterator last, Result const& result,
void*
)
{
return sprout::fixed::detail::reverse_copy_impl(first, last, result, sprout::size(result));
}
} // namespace detail
//
// reverse_copy
//
template<typename BidirectionalIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fixed::result_of::algorithm<Result>::type
reverse_copy(BidirectionalIterator first, BidirectionalIterator last, Result const& result) {
typedef typename std::iterator_traits<BidirectionalIterator>::iterator_category* category;
return sprout::fixed::detail::reverse_copy(first, last, result, category());
}
} // namespace fixed
using sprout::fixed::reverse_copy;
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_REVERSE_COPY_HPP