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std::allocator_traits::allocate

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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_traits
Membri funzioni
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
 
Elemento definito nell'header <memory>
static pointer allocate( Alloc& a, size_type n );
 (1) (dal C++11)
static pointer allocate( Alloc& a, size_type n, const_void_pointer hint );
 (2) (dal C++11)
1)
Utilizza il a allocatore di allocare byte n*sizeof(Alloc::value_type) di archiviazione non inizializzato, chiamando a.allocate(n)
Original:
Uses the allocator a to allocate n*sizeof(Alloc::value_type) bytes of uninitialized storage, by calling a.allocate(n)
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2)
Utilizza il a allocatore di allocare byte n*sizeof(Alloc::value_type) di archiviazione non inizializzato con il hint suggerimento memoria località. Chiamate a.allocate(n, hint) se possibile. Se non è possibile (ad esempio una non ha due argomenti funzione membro allocate ()), chiama a.allocate(n)
Original:
Uses the allocator a to allocate n*sizeof(Alloc::value_type) bytes of uninitialized storage with the memory locality hint hint. Calls a.allocate(n, hint) if possible. If not possible (e.g. a has no two-argument member function allocate()), calls a.allocate(n)
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[modifica] Parametri

a -
allocatore utilizzare
Original:
allocator to use
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n -
il numero di oggetti da allocare memoria per
Original:
the number of objects to allocate storage for
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hint -
puntatore a una posizione di memoria nelle vicinanze
Original:
pointer to a nearby memory location
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[modifica] Valore di ritorno

Il puntatore restituito dalla chiamata a a.allocate(n)
Original:
The pointer returned by the call to a.allocate(n)
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[modifica] Vedi anche
alloca memoria non inizializzata
Original:
allocates uninitialized storage
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(metodo pubblico) [modifica]
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