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std::allocator_traits::construct

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Gestión de memoria dinámica
Bajo la gestión de memoria de nivel
Los asignadores
Original:
Allocators
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allocator
allocator_traits(C++11)
allocator_arg_t(C++11)
allocator_arg(C++11)
uses_allocator(C++11)
scoped_allocator_adaptor(C++11)
Inicializar el almacenamiento
Original:
Uninitialized storage
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uninitialized_copy
uninitialized_copy_n(C++11)
uninitialized_fill
uninitialized_fill_n
raw_storage_iterator
get_temporary_buffer
return_temporary_buffer
Punteros inteligentes
Original:
Smart pointers
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unique_ptr(C++11)
shared_ptr(C++11)
weak_ptr(C++11)
auto_ptr(obsoleto)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
Garbage soporte colección
Original:
Garbage collection support
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declare_reachable(C++11)
undeclare_reachable(C++11)
declare_no_pointers(C++11)
undeclare_no_pointers(C++11)
pointer_safety(C++11)
get_pointer_safety(C++11)
Varios
Original:
Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C Library
Original:
C Library
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std::allocator_traits
Las funciones miembro
Original:
Member functions
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allocator_traits::allocate
allocator_traits::deallocate
allocator_traits::construct
allocator_traits::destroy
allocator_traits::max_size
allocator_traits::select_on_container_copy_construction
 
Defined in header <memory>
template< class T, class... Args >
static void construct( Alloc& a, T* p, Args&&... args );
(desde C++11)
Si es posible, crea un objeto de tipo T en almacenamiento asignado sin inicializar apuntado por p, llamando
Original:
If possible, constructs an object of type T in allocated uninitialized storage pointed to by p, by calling
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a.construct(p, std::forward<Args>(args)...)

Si lo anterior no es posible (por ejemplo a no tiene la función miembro construct(),), entonces llama a la colocación-como nuevo
Original:
If the above is not possible (e.g. a does not have the member function construct(),), then calls placement-new as
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    ::new (static_cast<void*>(p)) T(std::forward<Args>(args)...)

Contenido

[editar] Parámetros

a -
asignador de usar para la construcción
Original:
allocator to use for construction
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args... -
los argumentos del constructor para pasar a a.construct() o para la colocación de nuevo
Original:
the constructor arguments to pass to a.construct() or to placement-new
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[editar] Valor de retorno

(Ninguno)
Original:
(none)
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[editar] Notas

Esta función es utilizada por los contenedores de la biblioteca estándar al insertar, copiar o elementos móviles .
Original:
This function is used by the standard library containers when inserting, copying, or moving elements.
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Debido a que esta función proporciona la caída automática al nuevo emplazamiento, el construct() función miembro es un requisito opcional Allocator 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.
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[editar] Ver también

funciones de asignación
Original:
allocation functions
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(función) [edit]
construye un objeto de almacenamiento asignado
Original:
constructs an object in allocated storage
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(miembro público of std::allocator función) [edit]