[#BloombergLP-bslma-TestAllocator-lastDeallocatedNumBytes]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::xref:BloombergLP/bslma/TestAllocator.adoc[TestAllocator]::lastDeallocatedNumBytes
:relfileprefix: ../../../
:mrdocs:

Return the number of bytes of the most recent deallocation request. Return 0 if a null pointer was most recently deallocated, or if the request was invalid (e.g., an attempt to deallocate memory not allocated through this allocator).

== Synopsis

Declared in `<bslma_testallocator.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BloombergLP/bslma/Allocator/size_type.adoc[Allocator::size_type]
lastDeallocatedNumBytes() const;
----


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