std::reverse
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| Elemento definito nell'header <algorithm>
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| template< class BidirIt > void reverse( BidirIt first, BidirIt last ); |
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Inverte l'ordine degli elementi nel
[first, last) gamma.Original:
Reverses the order of the elements in the range
[first, last).The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
Indice |
[modifica] Parametri
| first, last | - | la gamma di elementi per invertire
Original: the range of elements to reverse The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| Type requirements | ||
-BidirIt must meet the requirements of BidirectionalIterator.
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-The type of dereferenced BidirIt must meet the requirements of Swappable.
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[modifica] Valore di ritorno
(Nessuno)
Original:
(none)
The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[modifica] Possibile implementazione
template<class BidirIt> void reverse(BidirIt first, BidirIt last) { while ((first != last) && (first != --last)) { std::swap(*first++, *last); } } |
[modifica] Esempio
#include <vector> #include <iostream> #include <algorithm> int main(int argc, char** argv) { std::vector<int> v({1,2,3}); std::reverse(std::begin(v), std::end(v)); std::cout << v[0] << v[1] << v[2] << '\n'; int a[] = {4, 5, 6, 7}; std::reverse(&a[0], &a[4]); std::cout << a[0] << a[1] << a[2] << a[3] << '\n'; }
Output:
321 7654
[modifica] Complessità
lineare la distanza tra
first e lastOriginal:
linear in the distance between
first and lastThe text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
You can help to correct and verify the translation. Click here for instructions.
[modifica] Vedi anche
| crea una copia di un intervallo che è invertita Original: creates a copy of a range that is reversed The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello) | |
