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48 lines
1.6 KiB
C++
48 lines
1.6 KiB
C++
#ifndef SPROUT_ALGORITHM_SEARCH_HPP
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#define SPROUT_ALGORITHM_SEARCH_HPP
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include HDR_ITERATOR_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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// Copyright (C) 2011 RiSK (sscrisk)
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// 25.2.13 Search
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template<typename ForwardIterator1, typename ForwardIterator2>
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inline SPROUT_CONSTEXPR ForwardIterator1 search(
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ForwardIterator1 first1,
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ForwardIterator1 last1,
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ForwardIterator2 first2,
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ForwardIterator2 last2
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)
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{
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return first1 == last1 || first2 == last2 ? first1
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: NS_SSCRISK_CEL_OR_SPROUT::distance(first1, last1) < NS_SSCRISK_CEL_OR_SPROUT::distance(first2, last2) ? last1
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: *first1 == *first2
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&& sprout::search(sprout::next(first1), last1, sprout::next(first2), last2) == sprout::next(first1)
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? first1
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: sprout::search(sprout::next(first1), last1, first2, last2)
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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 search(
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ForwardIterator1 first1,
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ForwardIterator1 last1,
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ForwardIterator2 first2,
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ForwardIterator2 last2,
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BinaryPredicate pred
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)
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{
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return first1 == last1 || first2 == last2 ? first1
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: NS_SSCRISK_CEL_OR_SPROUT::distance(first1, last1) < NS_SSCRISK_CEL_OR_SPROUT::distance(first2, last2) ? last1
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: *first1 == *first2
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&& sprout::search(sprout::next(first1), last1, sprout::next(first2), last2, pred) == sprout::next(first1)
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? first1
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: sprout::search(sprout::next(first1), last1, first2, last2, pred)
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;
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_SEARCH_HPP
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