Sprout/sprout/algorithm/fit/set_intersection.hpp
2011-09-03 22:26:26 +09:00

91 lines
3 KiB
C++

#ifndef SPROUT_ALGORITHM_FIT_SET_INTERSECTION_HPP
#define SPROUT_ALGORITHM_FIT_SET_INTERSECTION_HPP
#include <sprout/config.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include <sprout/algorithm/fixed/set_intersection.hpp>
#include <sprout/algorithm/fit/result_of.hpp>
#include <sprout/sub_array.hpp>
#include <sprout/detail/overlap_count_2.hpp>
#include HDR_ALGORITHM_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fit {
namespace detail {
template<typename Iterator1, typename Iterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_intersection_impl(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp,
typename sprout::fixed_container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_fixed(sprout::fixed::set_intersection(first1, last1, first2, last2, result, comp)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(
sprout::detail::overlap_count_2(first1, last1, first2, last2, comp),
sprout::size(result)
)
);
}
} // namespace detail
//
// set_intersection
//
template<typename Iterator1, typename Iterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_intersection(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp
)
{
return sprout::fit::detail::set_intersection_impl(first1, last1, first2, last2, result, comp, sprout::fixed_begin_offset(result));
}
namespace detail {
template<typename Iterator1, typename Iterator2, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_intersection_impl(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
typename sprout::fixed_container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_fixed(sprout::fixed::set_intersection(first1, last1, first2, last2, result)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(
sprout::detail::overlap_count_2(first1, last1, first2, last2),
sprout::size(result)
)
);
}
} // namespace detail
//
// set_intersection
//
template<typename Iterator1, typename Iterator2, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_intersection(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result
)
{
return sprout::fit::detail::set_intersection_impl(first1, last1, first2, last2, result, sprout::fixed_begin_offset(result));
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_SET_INTERSECTION_HPP