[#bsl-allocator-0a]
= xref:bsl.adoc[bsl]::xref:bsl/allocator-0df.adoc[allocator]<void>
:relfileprefix: ../
:mrdocs:

Specialization of `allocator` for `void`.

== Synopsis

Declared in `<bslma_bslallocator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<>
class xref:bsl/allocator-0df.adoc[allocator]<void>
    : public xref:bsl/allocator-0df.adoc[allocator<BloombergLP::bslma::BslAllocator_Voidish>]
----

== Description

Specialization of `allocator<T>` where `T` is `void`. Does not contain members that are unrepresentable for `void`. Note that this specialization may be removed in the future. Use `allocator<>` or `allocator<char>` instead.

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:bsl/allocator-0df.adoc[allocator<BloombergLP::bslma::BslAllocator_Voidish>]`
| An STL‐compatible allocator that forwards to a `bslma::Allocator`.
|===

== Types

[cols="1,4"]
|===
| Name| Description
| xref:bsl/allocator-0a/rebind.adoc[`rebind`] 
| Rebind this allocator to another type.
|===


== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:bsl/allocator-0a/const_pointer.adoc[`const_pointer`] 
| This `typedef` is an alias to `const void *`.
| xref:bsl/allocator-0a/const_reference.adoc[`const_reference`] 
| This `typedef` is an alias to a constant `value_type` reference.
| xref:bsl/allocator-0a/const_void_pointer.adoc[`const_void_pointer`] 
| This `typedef` is an alias to `const void *`.
| xref:bsl/allocator-0a/difference_type.adoc[`difference_type`] 
| Difference type for allocations from this allocator.
| xref:bsl/allocator-0a/pointer.adoc[`pointer`] 
| This `typedef` is an alias to `void *`.
| xref:bsl/allocator-0a/reference.adoc[`reference`] 
| This `typedef` is an alias to a modifiable `value_type` reference.
| xref:bsl/allocator-0a/size_type.adoc[`size_type`] 
| Size type for allocations from this allocator.
| xref:bsl/allocator-0a/value_type.adoc[`value_type`] 
| This `typedef` is an alias to `void`.
| xref:bsl/allocator-0a/void_pointer.adoc[`void_pointer`] 
| This `typedef` is an alias to `void *`.
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:bsl/allocator-0a/2constructor-0c.adoc[`allocator`]         [.small]#[constructor]#
| Constructors
| xref:bsl/allocator-0a/operator_assign.adoc[`operator=`] 
| Assign this allocator from the specified `rhs` if it is a no‐op assignment.
| xref:bsl/allocator-0a/address-071.adoc[`address`] 
| Return the address of the specified object `x`.
| xref:bsl/allocator-0a/allocate.adoc[`allocate`] 
| Return storage for `n` objects of `value_type`.
| xref:bsl/allocator-0a/construct-09.adoc[`construct`] 
| `construct` overloads
| xref:bsl/allocator-0a/deallocate.adoc[`deallocate`] 
| Deallocate the memory block at the specified `p` address.
| xref:bsl/allocator-0a/destroy.adoc[`destroy`] 
| Call the destructor for the object at the specified `address`.
| xref:bsl/allocator-0a/max_size.adoc[`max_size`] 
| Return the maximum number of elements allocatable by this allocator.
| xref:bsl/allocator-0a/mechanism.adoc[`mechanism`] 
| Return a pointer to the mechanism object to which this proxy forwards allocation and deallocation calls.
| xref:bsl/allocator-0a/select_on_container_copy_construction.adoc[`select_on_container_copy_construction`] 
| Return a default‐constructed allocator.
| xref:bsl/allocator-0a/2conversion-0f.adoc[`operator BloombergLP::bslmf::NestedTraitDeclaration<allocator<BslAllocator_Voidish>, IsBitwiseEqualityComparable>`] 
| Return a tag declaring that this allocator is bitwise copyable.
| xref:bsl/allocator-0a/2conversion-06.adoc[`operator BloombergLP::bslmf::NestedTraitDeclaration<allocator<void>, IsBitwiseEqualityComparable>`] 
| Declare that this type is bitwise copyable.
|===



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