std::allocator_traits::construct
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| Definido no cabeçalho <memory>
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| template< class T, class... Args > static void construct( Alloc& a, T* p, Args&&... args ); |
(desde C++11) | |
Se possível, constrói um objeto de
T tipo de armazenamento alocado não inicializado apontado por p, chamandoOriginal:
If possible, constructs an object of type
T in allocated uninitialized storage pointed to by p, by callingThe text has been machine-translated via Google Translate.
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a.construct(p, std::forward<Args>(args)...)
Se o acima não é possível (por exemplo
a não tem a função de membro construct(),), depois chama a colocação de novos comoOriginal:
If the above is not possible (e.g.
a does not have the member function construct(),), then calls placement-new asThe text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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::new (static_cast<void*>(p)) T(std::forward<Args>(args)...)
Índice |
[editar] Parâmetros
| a | - | alocador de usar para a construção
Original: allocator to use for construction The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. |
| args... | - | os argumentos do construtor para passar para
a.construct() ou a colocação de novo Original: the constructor arguments to pass to a.construct() or to placement-new 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
(Nenhum)
Original:
(none)
The text has been machine-translated via Google Translate.
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[editar] Notas
Esta função é usada pelos contêineres da biblioteca padrão ao inserir, copiar ou de elementos móveis.
Original:
This function is used by the standard library containers when inserting, copying, or moving elements.
The text has been machine-translated via Google Translate.
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Como essa função fornece a queda automática de volta para nova colocação, o
construct() função de membro é uma exigência Allocator opcional desde C + 11.Original:
Because this function provides the automatic fall back to placement new, the member function
construct() is an optional Allocator requirement since C++11.The text has been machine-translated via Google Translate.
You can help to correct and verify the translation. Click here for instructions.
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[editar] Veja também
| funções de alocação Original: allocation functions The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (função) | |
| constrói um objeto no armazenamento alocado Original: constructs an object in allocated storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (of std::allocator função pública membro)
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