[#bsl-allocator-069-2constructor-0b]
= xref:bsl.adoc[bsl]::xref:bsl/allocator-069.adoc[allocator<Attribute>]::allocator
:relfileprefix: ../../
:mrdocs:

Convert a `bslma::Allocator` pointer to an `allocator` object that forwards allocation calls to the object pointed to by the specified `mechanism`. If `mechanism` is 0, then the currently installed default allocator is used instead. Postcondition: ` this‐>mechanism() == bslma::Default::allocator(mechanism) `

== Synopsis

Declared in `<bslma_bslallocator.h>`

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