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sprout/algorithm/fixed/set_intersection.hpp Normal file
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#ifndef SPROUT_ALGORITHM_FIXED_SET_INTERSECTION_HPP
#define SPROUT_ALGORITHM_FIXED_SET_INTERSECTION_HPP
#include <type_traits>
#include <sprout/config.hpp>
#include <sprout/fixed_container/traits.hpp>
#include <sprout/fixed_container/functions.hpp>
#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT_DETAIL
namespace sprout {
namespace fixed {
namespace detail {
template<typename Result, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::fixed_container_traits<Result>::fixed_size == sizeof...(Args),
typename sprout::fixed_container_traits<Result>::fixed_container_type
>::type set_intersection_impl_3(
Result const& result,
Args const&... args
)
{
return typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
}
template<typename Result, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::fixed_container_traits<Result>::fixed_size != sizeof...(Args),
typename sprout::fixed_container_traits<Result>::fixed_container_type
>::type set_intersection_impl_3(
Result const& result,
Args const&... args
)
{
return set_intersection_impl_3(result, args..., *(sprout::fixed_begin(result) + sizeof...(Args)));
}
template<typename Iterator1, typename Iterator2, typename Result, typename Compare, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::fixed_container_traits<Result>::fixed_size == sizeof...(Args),
typename sprout::fixed_container_traits<Result>::fixed_container_type
>::type set_intersection_impl_2(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp,
typename sprout::fixed_container_traits<Result>::difference_type offset,
Args const&... args
)
{
return typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
}
template<typename Iterator1, typename Iterator2, typename Result, typename Compare, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::fixed_container_traits<Result>::fixed_size != sizeof...(Args),
typename sprout::fixed_container_traits<Result>::fixed_container_type
>::type set_intersection_impl_2(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp,
typename sprout::fixed_container_traits<Result>::difference_type offset,
Args const&... args
)
{
return sizeof...(Args) < offset
? first1 != last1
? first2 != last2
? comp(*first1, *first2)
? set_intersection_impl_2(first1 + 1, last1, first2, last2, result, comp, offset, args...)
: comp(*first2, *first1)
? set_intersection_impl_2(first1, last1, first2 + 1, last2, result, comp, offset, args...)
: set_intersection_impl_2(first1 + 1, last1, first2 + 1, last2, result, comp, offset, args..., *first1)
: set_intersection_impl_2(first1 + 1, last1, first2, last2, result, comp, offset, args...)
: first2 != last2
? set_intersection_impl_2(first1, last1, first2 + 1, last2, result, comp, offset, args...)
: set_intersection_impl_3(result, args...)
: set_intersection_impl_3(result, args...)
;
}
template<typename Iterator1, typename Iterator2, typename Result, typename Compare, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::fixed_container_traits<Result>::fixed_size == sizeof...(Args),
typename sprout::fixed_container_traits<Result>::fixed_container_type
>::type set_intersection_impl_1(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp,
typename sprout::fixed_container_traits<Result>::difference_type offset,
Args const&... args
)
{
return typename sprout::fixed_container_traits<Result>::fixed_container_type{args...};
}
template<typename Iterator1, typename Iterator2, typename Result, typename Compare, typename... Args>
SPROUT_CONSTEXPR inline typename std::enable_if<
sprout::fixed_container_traits<Result>::fixed_size != sizeof...(Args),
typename sprout::fixed_container_traits<Result>::fixed_container_type
>::type set_intersection_impl_1(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp,
typename sprout::fixed_container_traits<Result>::difference_type offset,
Args const&... args
)
{
return sizeof...(Args) < offset
? set_intersection_impl_1(first1, last1, first2, last2, result, comp, offset, args..., *(sprout::fixed_begin(result) + sizeof...(Args)))
: set_intersection_impl_2(first1, last1, first2, last2, result, comp, offset + sprout::size(result), args...)
;
}
template<typename Iterator1, typename Iterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type set_intersection_impl(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp
)
{
return set_intersection_impl_1(first1, last1, first2, last2, result, comp, sprout::fixed_begin_offset(result));
}
} // namespace detail
//
// set_intersection
//
template<typename Iterator1, typename Iterator2, typename Result, typename Compare>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type set_intersection(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result,
Compare comp
)
{
return sprout::fixed::detail::set_intersection_impl(
first1,
last1,
first2,
last2,
result,
comp
);
}
//
// set_intersection
//
template<typename Iterator1, typename Iterator2, typename Result>
SPROUT_CONSTEXPR inline typename sprout::fixed_container_traits<Result>::fixed_container_type set_intersection(
Iterator1 first1,
Iterator1 last1,
Iterator2 first2,
Iterator2 last2,
Result const& result
)
{
return sprout::fixed::detail::set_intersection_impl(
first1,
last1,
first2,
last2,
result,
NS_SSCRISK_CEL_OR_SPROUT_DETAIL::less<typename sprout::fixed_container_traits<Result>::value_type>()
);
}
} // namespace fixed
} // namespace sprout
#endif // #ifndef SPROUT_ALGORITHM_FIXED_SET_INTERSECTION_HPP