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std::uninitialized_fill

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C++
 
Utilità libreria
Tipo di supporto (basic types, RTTI, type traits)
Gestione della memoria dinamica
La gestione degli errori
Programma di utilità
Funzioni variadic
Data e ora
Funzione oggetti
initializer_list(C++11)
bitset
hash(C++11)
Gli operatori relazionali
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Relational operators
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rel_ops::operator!=
rel_ops::operator>
rel_ops::operator<=
rel_ops::operator>=
Coppie e tuple
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Pairs and tuples
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pair
tuple(C++11)
piecewise_construct_t(C++11)
piecewise_construct(C++11)
Swap, in avanti e spostare
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Swap, forward and move
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swap
forward(C++11)
move(C++11)
move_if_noexcept(C++11)
declval(C++11)
 
Gestione della memoria dinamica
Basso livello di gestione della memoria
Allocatori
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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
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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
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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
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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
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Miscellaneous
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pointer_traits(C++11)
addressof(C++11)
align(C++11)
C Library
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C Library
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Elemento definito nell'header <memory>
template< class ForwardIt, class T >
void uninitialized_fill( ForwardIt first, ForwardIt last, const T& value )
Copia il value valore dato ad una zona di memoria non inizializzata, definito dal [first, last) gamma. Gli elementi della zona non inizializzata sono costruiti utilizzando il costruttore di copia.
Original:
Copies the given value value to an uninitialized memory area, defined by the range [first, last). The elements in the uninitialized area are constructed using copy constructor.
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Indice

[modifica] Parametri

first, last -
la gamma degli elementi per inizializzare
Original:
the range of the elements to initialize
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value -
il valore di costruire gli elementi con
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the value to construct the elements with
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Type requirements
-
ForwardIt must meet the requirements of ForwardIterator.

[modifica] Valore di ritorno

(Nessuno)
Original:
(none)
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[modifica] Complessità

Lineare della distanza tra first e last
Original:
Linear in the distance between first and last
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[modifica] Possibile implementazione

template<class ForwardIt, class T>
void uninitialized_fill(ForwardIt first, 
                        ForwardIt last,
                        const T& value)
{
    typedef typename std::iterator_traits<ForwardIt>::value_type Value;
    for (; first != last; ++first) {
        ::new (static_cast<void*>(&*first)) Value(value);
    }
}

[modifica] Esempio

This section is incomplete
Reason: no example

[modifica] Vedi anche
copia di un oggetto ad una zona di memoria non inizializzata
Original:
copies an object to an uninitialized area of memory
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(funzione di modello) [modifica]
Estratto da "https://it.cppreference.com/mwiki/index.php?title=cpp/memory/uninitialized_fill&oldid=26180"