std::allocator_traits - cppreference.com

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Elemento definito nell'header `<memory>`

`template< class Alloc > struct allocator_traits;`		(dal C++11)

Il modello di classe allocator_traits fornisce il modo standard per accedere alle varie proprietà di allocatore. I contenitori standard e altri standard di componenti di libreria di accesso allocatori attraverso questo modello, che consente di utilizzare qualsiasi tipo di classe come un allocatore, fino a quando la specializzazione fornito dall'utente di allocator_traits implementa tutte le funzionalità necessarie.

Original:

The allocator_traits class template provides the standardized way to access various properties of allocators. The standard containers and other standard library components access allocators through this template, which makes it possible to use any class type as an allocator, as long as the user-provided specialization of allocator_traits implements all required functionality.

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L', di default non specialistico, allocator_traits contiene i seguenti membri:

Original:

The default, non-specialized, allocator_traits contains the following members:

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Membri tipi


Tipo Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition

`allocator_type`	`Alloc`

`value_type`	`Alloc::value_type`

`pointer`	`Alloc::pointer` se presente, altrimenti `value_type` Original: `Alloc::pointer` if present, otherwise `value_type` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`const_pointer`	`Alloc::const_pointer` se presente, altrimenti `std::pointer_traits<pointer>::rebind<const value_type>` Original: `Alloc::const_pointer` if present, otherwise `std::pointer_traits<pointer>::rebind<const value_type>` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`void_pointer`	`Alloc::void_pointer` se presente, altrimenti `std::pointer_traits<pointer>::rebind<void>` Original: `Alloc::void_pointer` if present, otherwise `std::pointer_traits<pointer>::rebind<void>` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`const_void_pointer`	`Alloc::const_void_pointer` se presente, altrimenti `std::pointer_traits<pointer>::rebind<const void>` Original: `Alloc::const_void_pointer` if present, otherwise `std::pointer_traits<pointer>::rebind<const void>` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`difference_type`	`Alloc::difference_type` se presente, altrimenti `std::pointer_traits<pointer>::difference_type` Original: `Alloc::difference_type` if present, otherwise `std::pointer_traits<pointer>::difference_type` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`size_type`	`Alloc::size_type` se presente, altrimenti `std::make_unsigned<difference_type>::type` Original: `Alloc::size_type` if present, otherwise `std::make_unsigned<difference_type>::type` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`propagate_on_container_copy_assignment`	`Alloc::propagate_on_container_copy_assignment` se presente, altrimenti std::false_type Original: `Alloc::propagate_on_container_copy_assignment` if present, otherwise std::false_type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`propagate_on_container_move_assignment`	`Alloc::propagate_on_container_move_assignment` se presente, altrimenti std::false_type Original: `Alloc::propagate_on_container_move_assignment` if present, otherwise std::false_type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`propagate_on_container_swap`	`Alloc::propagate_on_container_swap` se presente, altrimenti std::false_type Original: `Alloc::propagate_on_container_swap` if present, otherwise std::false_type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

Membri alias modelli


Tipo Original: Type The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.	Definition

`rebind_alloc<T>`	`Alloc::rebind<T>::other` se presente, altrimenti `Alloc<T, Args>` se questo Alloc è `Alloc<U, Args>` Original: `Alloc::rebind<T>::other` if present, otherwise `Alloc<T, Args>` if this Alloc is `Alloc<U, Args>` The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions.

`rebind_traits<T>`	`std::allocator_traits<rebind_alloc<T>>`

Membri funzioni


allocate [statico]	alloca memoria non inizializzata utilizzando l'allocatore Original: allocates uninitialized storage using the allocator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico statico) [modifica]

deallocate [statico]	dealloca di archiviazione utilizzando l'allocatore Original: deallocates storage using the allocator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico statico) [modifica]

construct [statico]	costruisce un oggetto nella memoria allocata Original: constructs an object in the allocated storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello) [modifica]

destroy [statico]	distrugge un oggetto memorizzato nella memoria allocata Original: destructs an object stored in the allocated storage The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (funzione di modello) [modifica]

max_size [statico]	restituisce la dimensione massima oggetto supportato dalla allocatore Original: returns the maximum object size supported by the allocator The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico statico) [modifica]

select_on_container_copy_construction [statico]	ottiene l'allocatore da usare dopo la copia di un contenitore standard Original: obtains the allocator to use after copying a standard container The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (metodo pubblico statico) [modifica]

Vedi anche


allocator	the default allocator (classe template) [modifica]

scoped_allocator_adaptor (C++11)	implementa multilivello allocatore per contenitori multi-livello Original: implements multi-level allocator for multi-level containers The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe template) [modifica]

pointer_traits (C++11)	fornisce informazioni su come i tipi di puntatore Original: provides information about pointer-like types The text has been machine-translated via Google Translate. You can help to correct and verify the translation. Click here for instructions. (classe template) [modifica]