[#BloombergLP-ball-FileObserver-2conversion]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/ball.adoc[ball]::xref:BloombergLP/ball/FileObserver.adoc[FileObserver]::operator xref:BloombergLP/bslmf/NestedTraitDeclaration.adoc[BloombergLP::bslmf::NestedTraitDeclaration<FileObserver, UsesBslmaAllocator>]
:relfileprefix: ../../../
:mrdocs:

Declare that this type uses a `bslma` allocator.

== Synopsis

Declared in `<ball_fileobserver.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
operator xref:BloombergLP/bslmf/NestedTraitDeclaration.adoc[BloombergLP::bslmf::NestedTraitDeclaration<FileObserver, UsesBslmaAllocator>]() const;
----


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