Sprout/sprout/algorithm/fit/unique_copy.hpp

75 lines
3 KiB
C++

#ifndef SPROUT_ALGORITHM_FIT_UNIQUE_COPY_HPP
#define SPROUT_ALGORITHM_FIT_UNIQUE_COPY_HPP
#include <sprout/config.hpp>
#include <sprout/iterator/distance.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/algorithm/fixed/unique_copy.hpp>
#include <sprout/algorithm/fit/result_of.hpp>
#include <sprout/sub_array.hpp>
#include <sprout/detail/algorithm/overlap_count.hpp>
#include HDR_ALGORITHM_SSCRISK_CEL_OR_SPROUT
#include <sprout/iterator/type_traits/is_iterator.hpp>
namespace sprout {
namespace fit {
namespace detail {
template<typename InputIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
unique_copy_impl(
InputIterator first, InputIterator last, Result const& result,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::unique_copy(first, last, result)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT::min(
sprout::distance(first, last) - sprout::detail::overlap_count(first, last),
sprout::size(result)
)
);
}
} // namespace detail
//
// unique_copy
//
template<typename InputIterator, typename Result>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
unique_copy(InputIterator first, InputIterator last, Result const& result) {
static_assert(sprout::is_forward_iterator<InputIterator>::value, "Sorry, not implemented.");
return sprout::fit::detail::unique_copy_impl(first, last, result, sprout::internal_begin_offset(result));
}
namespace detail {
template<typename InputIterator, typename Result, typename BinaryPredicate>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
unique_copy_impl(
InputIterator first, InputIterator last, Result const& result, BinaryPredicate pred,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::unique_copy(first, last, result, pred)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT::min(
sprout::distance(first, last) - sprout::detail::overlap_count(first, last, pred),
sprout::size(result)
)
);
}
} // namespace detail
//
// unique_copy
//
template<typename InputIterator, typename Result, typename BinaryPredicate>
inline SPROUT_CONSTEXPR typename sprout::fit::result_of::algorithm<Result>::type
unique_copy(InputIterator first, InputIterator last, Result const& result, BinaryPredicate pred) {
static_assert(sprout::is_forward_iterator<InputIterator>::value, "Sorry, not implemented.");
return sprout::fit::detail::unique_copy_impl(first, last, result, pred, sprout::internal_begin_offset(result));
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_UNIQUE_COPY_HPP