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https://github.com/bolero-MURAKAMI/Sprout.git
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83 lines
3.4 KiB
C++
83 lines
3.4 KiB
C++
#ifndef SPROUT_DETAIL_ALGORITHM_SEARCH_ONE_HPP
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#define SPROUT_DETAIL_ALGORITHM_SEARCH_ONE_HPP
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#include <iterator>
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/functional/equal_to.hpp>
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#include <sprout/algorithm/mismatch.hpp>
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#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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namespace detail {
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template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename BinaryPredicate>
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inline SPROUT_CONSTEXPR RandomAccessIterator1
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search_one_impl_ra(
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RandomAccessIterator1 first1, RandomAccessIterator1 last1, RandomAccessIterator2 first2, RandomAccessIterator2 last2, BinaryPredicate pred
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)
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{
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return sprout::detail::mismatch_impl_ra(
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first1, last1, first2, pred,
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NS_SSCRISK_CEL_OR_SPROUT::distance(first1, last1) / 2, first1
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)
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== last1
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? first1
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: last1
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;
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}
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template<typename RandomAccessIterator1, typename RandomAccessIterator2, typename BinaryPredicate>
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inline SPROUT_CONSTEXPR RandomAccessIterator1
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search_one(
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RandomAccessIterator1 first1, RandomAccessIterator1 last1, RandomAccessIterator2 first2, RandomAccessIterator2 last2, BinaryPredicate pred,
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std::random_access_iterator_tag*
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)
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{
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return NS_SSCRISK_CEL_OR_SPROUT::distance(first1, last1) < NS_SSCRISK_CEL_OR_SPROUT::distance(first2, last2) ? last1
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: first1 == last1 ? first1
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: sprout::detail::search_one_impl_ra(
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first1, sprout::next(first1, NS_SSCRISK_CEL_OR_SPROUT::distance(first2, last2)), first2, last2, pred
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)
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;
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}
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template<typename ForwardIterator1, typename ForwardIterator2, typename BinaryPredicate>
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inline SPROUT_CONSTEXPR ForwardIterator1
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search_one_impl(
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ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred,
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ForwardIterator1 first1_
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)
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{
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return first2 == last2 ? first1_
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: first1 == last1 ? last1
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: !pred(*first1, *first2) ? first1
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: sprout::detail::search_one_impl(sprout::next(first1), last1, sprout::next(first2), last2, pred, first1_)
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;
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}
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template<typename ForwardIterator1, typename ForwardIterator2, typename BinaryPredicate>
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inline SPROUT_CONSTEXPR ForwardIterator1
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search_one(
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ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred,
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void*
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)
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{
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return sprout::detail::search_one_impl(first1, last1, first2, last2, pred, first1);
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}
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//
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// search_one
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//
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template<typename ForwardIterator1, typename ForwardIterator2, typename BinaryPredicate>
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inline SPROUT_CONSTEXPR ForwardIterator1
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search_one(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2, BinaryPredicate pred) {
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typedef typename sprout::common_iterator_category<ForwardIterator1, ForwardIterator2>::type* category;
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return sprout::detail::search_one(first1, last1, first2, last2, pred, category());
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}
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template<typename ForwardIterator1, typename ForwardIterator2>
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inline SPROUT_CONSTEXPR ForwardIterator1
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search_one(ForwardIterator1 first1, ForwardIterator1 last1, ForwardIterator2 first2, ForwardIterator2 last2) {
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return sprout::detail::search_one(first1, last1, first2, last2, sprout::equal_to<>());
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}
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} //namespace detail
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} // namespace sprout
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#endif // #ifndef SPROUT_DETAIL_ALGORITHM_SEARCH_ONE_HPP
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