std::search_n
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| Defined in header <algorithm>
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| template< class ForwardIt, class Size, class T > ForwardIt1 search_n( ForwardIt first, ForwardIt last, Size count, const T& value ); |
(1) | |
| template< class ForwardIt, class Size, class T, class BinaryPredicate > ForwardIt1 search_n( ForwardIt first, ForwardIt last, Size count, const T& value, |
(2) | |
[first, last)。最初のバージョンは、要素を比較するoperator==使用して、2番目のバージョンは、指定されたバイナリ述語pを使用しています.[first, last) for the first sequence of count identical elements, each equal to the given value value. The first version uses operator== to compare the elements, the second version uses the given binary predicate p.You can help to correct and verify the translation. Click here for instructions.
目次 |
[編集] パラメータ
| first, last | - | 検討する要素の範囲
Original: the range of elements to examine The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |||||||||
| count | - | を検索するためのシーケンスの長さ
Original: the length of the sequence to search for The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |||||||||
| value | - | 検索する要素の値
Original: the value of the elements to search for The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. | |||||||||
| p | - | binary predicate which returns true if the elements should be treated as equal. The signature of the predicate function should be equivalent to the following:
The signature does not need to have const &, but the function must not modify the objects passed to it. | |||||||||
| Type requirements | |||||||||||
-ForwardIt must meet the requirements of ForwardIterator.
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[編集] 値を返します
[first, last)に見出される配列の先頭にIiterator。そのようなシーケンスが見つからない場合は、lastが返されます.[first, last). If no such sequence is found, last is returned.You can help to correct and verify the translation. Click here for instructions.
[編集] 複雑
last - firstアプリケーションで.last - first applications of the predicate.You can help to correct and verify the translation. Click here for instructions.
[編集] 可能な実装
| First version |
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template<class ForwardIt, class Size, class T> ForwardIt1 search_n(ForwardIt first, ForwardIt last, Size count, const T& value) { Size curr_count = 0; ForwardIt result, t_last = first; std::advance(t_last, std::distance(first, last) - count + 1); for (; first != t_last; first++) { curr_count = 0; result = first; while (*first == value) { curr_count++; if (curr_count == count) { return result; } ++first; } } return last; } |
| Second version |
template<class ForwardIt, class Size, class T, class BinaryPredicate> ForwardIt1 search_n(ForwardIt first, ForwardIt last, Size count, const T& value, BinaryPredicate p) { Size curr_count = 0; ForwardIt result, t_last = first; std::advance(t_last, std::distance(first, last) - count + 1); for (; first != t_last; first++) { curr_count = 0; result = first; while (p(*first == value)) { curr_count++; if (curr_count == count) { return result; } ++first; } } return last; } |
[編集] 例
| This section is incomplete |
[編集] も参照してください
| 一定の範囲内にある要素の最後のシーケンスを見つけることができます Original: finds the last sequence of elements in a certain range The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート) | |
| (C++11) |
特定の条件を満たす最初の要素を検索します Original: finds the first element satisfying specific criteria The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (関数テンプレート) |
| searches for a range of elements (関数テンプレート) | |