[#bsl-allocator_traits-0ae-deallocate]
= xref:bsl.adoc[bsl]::xref:bsl/allocator_traits-0ae.adoc[allocator_traits<std::allocator<ALLOCATOR_TYPE>>]::deallocate
:relfileprefix: ../../
:mrdocs:

Deallocate the storage at `p` for `n` objects.

== Synopsis

Declared in `<bslma_allocatortraits.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
using Base::deallocate;
----

== Description

Invoke `a.deallocate(p, n)` via the underlying `std::allocator_traits` implementation. The behavior is undefined unless `p` was returned from a prior `allocate` call on an equal allocator and has not yet been deallocated.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| allocator that performs the deallocation
| *p*
| pointer previously returned by `allocate`
| *n*
| number of objects in the block to deallocate
|===


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