std::remove_copy, std::remove_copy_if
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<tbody> </tbody>| Dclar dans l'en-tte <algorithm>
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template< class InputIt, class OutputIt, class T > OutputIt remove_copy( InputIt first, InputIt last, OutputIt d_first, const T& value ); |
(1) | |
template< class InputIt, class OutputIt, class UnaryPredicate > OutputIt remove_copy_if( InputIt first, InputIt last, OutputIt d_first, UnaryPredicate p ); |
(2) | |
Copie les lments de la gamme
[first, last), une autre gamme dbutant d_first, en omettant les lments qui satisfont des critres spcifiques. La premire version ne tient pas compte des lments qui sont gaux value, la deuxime version ne tient pas compte des lments pour lesquels prdicat 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.
You can help to correct and verify the translation. Click here for instructions.
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Paramtres
| first, last | - | l'ventail des lments 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 dbut 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 lments 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.
| ||
-OutputIt must meet the requirements of OutputIterator.
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Retourne la valeur
Itrateur l'lment aprs le dernier lment copi .
Original:
Iterator to the element past the last element copied.
The text has been machine-translated via Google Translate.
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Complexit
Exactement
last - first applications du prdicat .Original:
Exactly
last - first applications of the predicate.The text has been machine-translated via Google Translate.
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Mise en uvre possible
| First version |
|---|
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;
}
|
Exemple
Le code suivant gnre une chane tout en effaant les espaces la vole .
Original:
The following code outputs a string while erasing the spaces on the fly.
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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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';
}
Rsultat :
before: Text with some spaces
after: Textwithsomespaces
Voir aussi
supprime des lments rpondant des critres spcifiques 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 gnrique) | |