Namespace
Varianti

std::vector::emplace

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< cpp‎ | container‎ | vector

 
 
 
std::vector
Membri funzioni
Original:
Member functions
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vector::vector
vector::~vector
vector::operator=
vector::assign
vector::get_allocator
Elemento accesso
Original:
Element access
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vector::at
vector::operator[]
vector::front
vector::back
vector::data(C++11)
Iteratori
Original:
Iterators
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vector::begin
vector::cbegin

(C++11)
vector::end
vector::cend

(C++11)
vector::rbegin
vector::crbegin

(C++11)
vector::rend
vector::crend

(C++11)
Capacità
Original:
Capacity
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vector::empty
vector::size
vector::max_size
vector::reserve
vector::capacity
vector::shrink_to_fit(C++11)
Modificatori
Original:
Modifiers
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vector::clear
vector::insert
vector::emplace(C++11)
vector::erase
vector::push_back
vector::emplace_back(C++11)
vector::pop_back
vector::resize
vector::swap
 
template< class... Args >
iterator emplace( const_iterator pos, Args&&... args );
(dal C++11)
Inserisce un nuovo elemento nel contenitore direttamente prima pos. L'elemento è costruito sul posto, cioè non copia o operazioni di spostamento vengono eseguite. Il costruttore dell'elemento viene chiamato con il std::forward<Args>(args)... argomenti. Il tipo di elemento deve essere EmplaceConstructible, MoveInsertable and MoveAssignable.
Original:
Inserts a new element into the container directly before pos. The element is constructed in-place, i.e. no copy or move operations are performed. The constructor of the element is called with the arguments std::forward<Args>(args).... The element type must be EmplaceConstructible, MoveInsertable and MoveAssignable.
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If the new size() is greater than capacity(), all iterators and references are invalidated. Otherwise, only the iterators and references after the added element are invalidated.

Indice

[modifica] Parametri

pos -
iteratore prima che il nuovo elemento sarà costruito
Original:
iterator before which the new element will be constructed
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args -
argomenti da inoltrare al costruttore dell'elemento
Original:
arguments to forward to the constructor of the element
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[modifica] Valore di ritorno

Iteratore che punta all'elemento in posto.
Original:
Iterator pointing to the emplaced element.
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[modifica] Complessità

Linear in the distance between pos and end of the container.

[modifica] Eccezioni

Se viene generata un'eccezione (ad esempio dal costruttore), il contenitore viene lasciato invariato, come se questa funzione non è mai stata chiamata (garanzia eccezione forte).
Original:
If an exception is thrown (e.g. by the constructor), the container is left unmodified, as if this function was never called (strong exception guarantee).
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[modifica] Vedi anche

inserti di elementi
Original:
inserts elements
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(membro pubblico funzione) [edit]