[#BloombergLP-bdlma-CountingAllocator-deallocate-09]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlma.adoc[bdlma]::xref:BloombergLP/bdlma/CountingAllocator.adoc[CountingAllocator]::deallocate
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:mrdocs:

Return the memory block at the specified `address` back to this allocator. If `address` is 0, this function has no effect (e.g., on allocation statistics). Otherwise, decrease the number of currently allocated bytes by the size originally requested for the block. The behavior is undefined unless `address` was allocated using this allocator object and has not already been deallocated.

== Synopsis

Declared in `<bdlma_countingallocator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
deallocate(void* address) override;
----


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