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std::allocator::construct

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< cpp‎ | memory‎ | allocator

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C++
 
Gestione della memoria dinamica
Basso livello di gestione della memoria
Allocatori
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)
Non inizializzata stoccaggio
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
Puntatori intelligenti
Original:
Smart pointers
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unique_ptr(C++11)
shared_ptr(C++11)
weak_ptr(C++11)
auto_ptr(deprecato)
owner_less(C++11)
enable_shared_from_this(C++11)
bad_weak_ptr(C++11)
default_delete(C++11)
Garbage collection supporto
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)
Varie
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
Membri funzioni
Original:
Member functions
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allocator::allocator
allocator::~allocator
allocator::address
allocator::allocate
allocator::deallocate
allocator::max_size
allocator::construct
allocator::destroy
Non membri funzioni
Original:
Non-member functions
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operator==
operator!=
 
Elemento definito nell'header <memory>
void construct( pointer p, const_reference val );
 (fino al c++11)
template< class U, class... Args >
void construct( U* p, Args&&... args );
 (dal C++11)
Costruisce un oggetto di tipo T in memoria non inizializzata assegnato puntato da p, utilizzando il posizionamento-nuovo
Original:
Constructs an object of type T in allocated uninitialized storage pointed to by p, using placement-new
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1)
Chiamate new((void *)p) T(val)
Original:
Calls new((void *)p) T(val)
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2)
Chiamate ::new((void *)p) U(std::forward<Args>(args)...)
Original:
Calls ::new((void *)p) U(std::forward<Args>(args)...)
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[modifica] Parametri

p -
puntatore alla memoria allocata non inizializzata
Original:
pointer to allocated uninitialized storage
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val -
il valore da utilizzare come argomento del costruttore di copia
Original:
the value to use as the copy constructor argument
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args... -
gli argomenti del costruttore per l'uso
Original:
the constructor arguments to use
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[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Vedi anche

[statico]
costruisce un oggetto nella memoria allocata
Original:
constructs an object in the allocated storage
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(funzione di modello) [modifica]
allocazione funzioni
Original:
allocation functions
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(funzione) [modifica]
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