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std::uninitialized_fill

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< cpp‎ | memory

 
 
 
La gestion dynamique de la mémoire
Faible niveau de gestion de la mémoire
Répartiteurs
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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 initialisée stockage
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
Pointeurs intelligents
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Smart pointers
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unique_ptr (C++11)
shared_ptr (C++11)
weak_ptr (C++11)
auto_ptr (obsolète)
owner_less (C++11)
enable_shared_from_this (C++11)
bad_weak_ptr (C++11)
default_delete (C++11)
Soutien garbage collection
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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)
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get_pointer_safety (C++11)
Divers
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Miscellaneous
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pointer_traits (C++11)
addressof (C++11)
align (C++11)
Bibliothèque C
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C Library
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Defined in header <memory>
template< class ForwardIt, class T >
void uninitialized_fill( ForwardIt first, ForwardIt last, const T& value )
Copie la valeur value donné à une zone de mémoire non initialisée, définie par la plage [first, last). Les éléments de la zone non initialisée sont construites en utilisant constructeur de copie .
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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Sommaire

[modifier] Paramètres

first, last -
l'intervalle des éléments à initialiser
Original:
the range of the elements to initialize
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value -
la valeur pour la construction des éléments de
Original:
the value to construct the elements with
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Type requirements
-
ForwardIt must meet the requirements of ForwardIterator.

[modifier] Retourne la valeur

(Aucun)
Original:
(none)
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[modifier] Complexité

Linéaire de la distance entre first et last
Original:
Linear in the distance between first and last
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[modifier] Mise en œuvre possible

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);
    }
}

[modifier] Exemple

[modifier] Voir aussi

copie un objet dans une zone non initialisée de la mémoire
Original:
copies an object to an uninitialized area of memory
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(fonction générique) [edit]