std::unordered_map::emplace_hint
 |
Questa pagina è stata tradotta in modo automatico dalla versione in ineglese della wiki usando Google Translate.
La traduzione potrebbe contenere errori e termini strani. Muovi il puntatore sopra al testo per vedere la versione originale. Puoi aiutarci a correggere gli gli errori. Per ulteriori istruzioni clicca qui. |
| template <class... Args> iterator emplace_hint( const_iterator hint, Args&&... args ); |
(dal C++11) | |
hint come un suggerimento in cui l'elemento dovrebbe andare. L'elemento è costruito sul posto, cioè non copia o operazioni di spostamento vengono eseguite. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....hint as a suggestion where the element should go. The element is constructed in-place, i.e. no copy or move operations are performed. The constructor of the element type (value_type, that is, std::pair<const Key, T>) is called with exactly the same arguments as supplied to the function, forwarded with std::forward<Args>(args)....You can help to correct and verify the translation. Click here for instructions.
If rehashing occurs due to the insertion, all iterators are invalidated. Otherwise iterators are not affected. References are not invalidated. Rehashing occurs only if the new number of elements is higher than max_load_factor()*bucket_count().
Indice |
[modifica] Parametri
| hint | - | iteratore, usato come un suggerimento di dove inserire il nuovo elemento
Original: iterator, used as a suggestion as to where to insert the new element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| args | - | argomenti da inoltrare al costruttore dell'elemento
Original: arguments to forward to the constructor of the element The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
[modifica] Valore di ritorno
You can help to correct and verify the translation. Click here for instructions.
If the insertion failed because the element already exists, returns an iterator to the already existing element with the equivalent key.
[modifica] Complessità
Amortized constant on average, worst case linear in the size of the container.
[modifica] Vedi anche
| constructs element in-place (metodo pubblico) | |
| inserti di elementi Original: inserts elements The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico) | |
