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std::pointer_traits::pointer_to

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La gestion dynamique de la mémoire
Faible niveau de gestion de la mémoire
Répartiteurs
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 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
Original:
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
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)
Divers
Original:
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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std::pointer_traits
Les fonctions membres
Original:
Member functions
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pointer_traits::pointer_to
 
Defined in header <memory>
static pointer pointer_traits<Ptr>::pointer_to(element_type& r );
(depuis C++11)
static pointer pointer_traits<T*>::pointer_to(element_type& r);
(depuis C++11)
Construit un pointeur dereferenceable à son argument .
Original:
Constructs a dereferenceable pointer to its argument.
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1)
La version de cette fonction dans le modèle std::pointer_traits non spécialisé appelle simplement Ptr::pointer_to(r), et si Ptr ne fournit pas une fonction membre statique pointer_to, l'instanciation de cette fonction est une erreur de compilation .
Original:
The version of this function in the non-specialized std::pointer_traits template simply calls Ptr::pointer_to(r), and if Ptr does not provide a static member function pointer_to, instantiation of this function is a compile-time error.
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2)
La version de cette fonction dans la spécialisation des std::pointer_traits pour les types pointeur retourne std::addressof(r)
Original:
The version of this function in the specialization of std::pointer_traits for pointer types returns std::addressof(r)
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Sommaire

[modifier] Paramètres

r -
référence à un objet de element_type& type, sauf si ELEMENT_TYPE est void, dans ce cas, le type de r n'est pas spécifié
Original:
reference to an object of type element_type&, except if element_type is void, in which case the type of r is unspecified
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[modifier] Retourne la valeur

Un pointeur dereferenceable à r, de la pointer_traits type <> :: .. pointeur
Original:
A dereferenceable pointer to r, of the type pointer_traits<>::pointer.
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[modifier] Exceptions

1)
Non spécifié (généralement la même que Ptr::pointer_to)
Original:
Unspecified (typically same as Ptr::pointer_to)
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2)
noexcept specification:  
noexcept
   (depuis C++11)

[modifier] Notes

Le boost library version de cette fonction retourne pointer(std::addressof(r)) si Ptr :: pointer_to n'existe pas .
Original:
The boost library version of this function returns pointer(std::addressof(r)) if Ptr::pointer_to does not exist.
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[modifier] Voir aussi

(C++11)
obtient l'adresse réelle d'un objet, même si l'opérateur & est surchargé
Original:
obtains actual address of an object, even if the & operator is overloaded
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(fonction générique) [edit]
obtient l'adresse d'un objet, même si operator& est surchargé
Original:
obtains the address of an object, even if operator& is overloaded
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(fonction membre publique de std::allocator) [edit]