std::list::merge
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| void merge( list& other ); |
(1) | |
| void merge( list&& other ); |
(1) | (dal C++11) |
| template <class Compare> void merge( list& other, Compare comp ); |
(2) | |
| template <class Compare> void merge( list&& other, Compare comp ); |
(2) | (dal C++11) |
Unisce due liste ordinate in una sola. Le liste devono essere ordinati in ordine crescente.
Original:
Merges two sorted lists into one. The lists should be sorted into ascending order.
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Non ci sono elementi vengono copiati. Il
other contenitore si svuota dopo l'operazione. La funzione non fa nulla se this == &other. Se get_allocator() != other.get_allocator(), il comportamento è indefinito. Non iteratori o riferimenti diventano invalidata, tranne che gli iteratori di elementi spostati ora si riferiscono in *this, non in other. La prima versione utilizza operator< di confrontare gli elementi, la seconda versione utilizza la funzione di confronto dato comp.Original:
No elements are copied. The container
other becomes empty after the operation. The function does nothing if this == &other. If get_allocator() != other.get_allocator(), the behavior is undefined. No iterators or references become invalidated, except that the iterators of moved elements now refer into *this, not into other. The first version uses operator< to compare the elements, the second version uses the given comparison function comp.The text has been machine-translated via Google Translate.
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Indice |
[modifica] Parametri
| other | - | un altro contenitore per unire
Original: another container to merge The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| comp | - | comparison function which returns true if the first argument is less than the second. The signature of the comparison function should be equivalent to the following: bool cmp(const Type1 &a, const Type2 &b); The signature does not need to have const &, but the function must not modify the objects passed to it. |
[modifica] Valore di ritorno
(Nessuno)
Original:
(none)
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[modifica] Esempio
#include <iostream> #include <list> std::ostream& operator<<(std::ostream& ostr, const std::list<int>& list) { for (auto &i : list) { ostr << " " << i; } return ostr; } int main() { std::list<int> list1 = { 5,9,0,1,3 }; std::list<int> list2 = { 8,7,2,6,4 }; list1.sort(); list2.sort(); std::cout << "list1: " << list1 << "\n"; std::cout << "list2: " << list2 << "\n"; list1.merge(list2); std::cout << "merged: " << list1 << "\n"; }
Output:
list1: 0 1 3 5 9 list2: 2 4 6 7 8 merged: 0 1 2 3 4 5 6 7 8 9
[modifica] Complessità
a confronto la maggior parte size() + other.size() - 1.
Original:
at most size() + other.size() - 1 comparisons.
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[modifica] Vedi anche
| sposta gli elementi da un altro list Original: moves elements from another list The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
