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Sprout/sprout/algorithm/fit/set_difference.hpp

96 lines
3.3 KiB
C++

#ifndef SPROUT_ALGORITHM_FIT_SET_DIFFERENCE_HPP
#define SPROUT_ALGORITHM_FIT_SET_DIFFERENCE_HPP
#include <sprout/config.hpp>
#include <sprout/container/traits.hpp>
#include <sprout/container/functions.hpp>
#include <sprout/algorithm/fixed/set_difference.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
#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fit {
namespace detail {
template<typename InputIterator1, typename InputIterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_difference_impl(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result,
Compare comp,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::set_difference(first1, last1, first2, last2, result, comp)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(first1, last1)
- sprout::detail::overlap_count_2(first1, last1, first2, last2, comp)
,
sprout::size(result)
)
);
}
} // namespace detail
//
// set_difference
//
template<typename InputIterator1, typename InputIterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_difference(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result,
Compare comp
)
{
return sprout::fit::detail::set_difference_impl(first1, last1, first2, last2, result, comp, sprout::internal_begin_offset(result));
}
namespace detail {
template<typename InputIterator1, typename InputIterator2, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_difference_impl(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result,
typename sprout::container_traits<Result>::difference_type offset
)
{
return sprout::sub_copy(
sprout::get_internal(sprout::fixed::set_difference(first1, last1, first2, last2, result)),
offset,
offset + NS_SSCRISK_CEL_OR_SPROUT_DETAIL::min(
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::distance(first1, last1)
- sprout::detail::overlap_count_2(first1, last1, first2, last2)
,
sprout::size(result)
)
);
}
} // namespace detail
//
// set_difference
//
template<typename InputIterator1, typename InputIterator2, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fit::result_of::algorithm<Result>::type set_difference(
InputIterator1 first1,
InputIterator1 last1,
InputIterator2 first2,
InputIterator2 last2,
Result const& result
)
{
return sprout::fit::detail::set_difference_impl(first1, last1, first2, last2, result, sprout::internal_begin_offset(result));
}
} // namespace fit
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIT_SET_DIFFERENCE_HPP