std::unordered_map::emplace_hint
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< cpp | container | unordered map
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template<class... Args> iterator emplace_hint( const_iterator hint, Args&&... args); | (desde C++11) | |
Insere um novo elemento ao recipiente, utilizando-se como uma sugestão
hint em que o elemento de ir. O elemento é construído no local, ou seja, nenhuma cópia ou operações de movimentação são executadas. 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)....Original:
Inserts a new element to the container, using
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)....The text has been machine-translated via Google Translate.
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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().
Índice |
[editar]Parâmetros
| hint | - | iterador, usado como uma sugestão para o local para inserir o novo 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 | - | argumentos para encaminhar para o construtor do 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. |
[editar]Valor de retorno
Retorna um iterador para o elemento inserido.
Original:
Returns an iterator to the newly inserted element.
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If the insertion failed because the element already exists, returns an iterator to the already existing element with the equivalent key.
[editar]Complexidade
Amortized constant on average, worst case linear in the size of the container.
[editar]Veja também
| constructs element in-place (função pública membro) | |
insere elementos 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. (função pública membro) | |
