[#BloombergLP-bslma-BufferAllocator-AllocCallback]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::xref:BloombergLP/bslma/BufferAllocator.adoc[BufferAllocator]::AllocCallback
:relfileprefix: ../../../
:mrdocs:

`AllocCallback` is an alias for (the address of) a function that takes an integer argument and returns `void &ast;`&period;

== Synopsis

Declared in `&lt;bslma&lowbar;bufferallocator&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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typedef void*(* AllocCallback)(int);
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