std::remove_copy, std::remove_copy_if
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| Déclaré dans l'en-tête <algorithm>
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| template< class InputIt, class OutputIt, class T > OutputIt remove_copy( InputIt first, InputIt last, OutputIt d_first, |
(1) | |
| template< class InputIt, class OutputIt, class UnaryPredicate > OutputIt remove_copy_if( InputIt first, InputIt last, OutputIt d_first, |
(2) | |
Copie les éléments de la gamme
[first, last), à une autre gamme débutant à d_first, en omettant les éléments qui satisfont à des critères spécifiques. La première version ne tient pas compte des éléments qui sont égaux à value, la deuxième version ne tient pas compte des éléments pour lesquels prédicat retourne p true. Gammes de source et de destination ne peuvent pas se chevaucher .Original:
Copies elements from the range
[first, last), to another range beginning at d_first, omitting the elements which satisfy specific criteria. The first version ignores the elements that are equal to value, the second version ignores the elements for which predicate p returns true. Source and destination ranges cannot overlap.The text has been machine-translated via Google Translate.
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Sommaire |
[modifier] Paramètres
| first, last | - | l'éventail des éléments à copier
Original: the range of elements to copy The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| d_first | - | le début de la plage de destination .
Original: the beginning of the destination range. The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| value | - | la valeur des éléments non copier
Original: the value of the elements not to copy The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| Type requirements | ||
-InputIt must meet the requirements of InputIterator.
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-OutputIt must meet the requirements of OutputIterator.
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[modifier] Retourne la valeur
Itérateur à l'élément après le dernier élément copié .
Original:
Iterator to the element past the last element copied.
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[modifier] Complexité
Exactement
last - first applications du prédicat .Original:
Exactly
last - first applications of the predicate.The text has been machine-translated via Google Translate.
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[modifier] Mise en œuvre possible
| First version |
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template<class InputIt, class OutputIt, class T> OutputIt remove_copy(InputIt first, InputIt last, OutputIt d_first, const T& value) { for (; first != last; ++first) { if (!(*first == value)) { *d_first++ = *first; } } return d_first; } |
| Second version |
template<class InputIt, class OutputIt, class UnaryPredicate> OutputIt remove_copy_if(InputIt first, InputIt last, OutputIt d_first, UnaryPredicate p) { for (; first != last; ++first) { if (!p(*first)) { *d_first++ = *first; } } return d_first; } |
[modifier] Exemple
Le code suivant génère une chaîne tout en effaçant les espaces à la volée .
Original:
The following code outputs a string while erasing the spaces on the fly.
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#include <algorithm> #include <iterator> #include <string> #include <iostream> int main() { std::string str = "Text with some spaces"; std::cout << "before: " << str << "\n"; std::cout << "after: "; std::remove_copy(str.begin(), str.end(), std::ostream_iterator<char>(std::cout), ' '); std::cout << '\n'; }
Résultat :
before: Text with some spaces after: Textwithsomespaces
[modifier] Voir aussi
| supprime des éléments répondant à des critères spécifiques Original: removes elements 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. (fonction générique) | |
