[#BloombergLP-bslstl-StopCallback_CallbackStorage-05]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/StopCallback_CallbackStorage-06.adoc[StopCallback&lowbar;CallbackStorage]&lt;t&lowbar;CALLBACK, true&gt;
:relfileprefix: ../../
:mrdocs:

This partial specialization stores a reference to a callback&period;

== Synopsis

Declared in `&lt;bslstl&lowbar;stoptoken&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class t&lowbar;CALLBACK&gt;
class xref:BloombergLP/bslstl/StopCallback_CallbackStorage-06.adoc[StopCallback&lowbar;CallbackStorage]&lt;t&lowbar;CALLBACK, true&gt;;
----

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/StopCallback_CallbackStorage-05/allocator_type.adoc[`allocator&lowbar;type`] 
| Dummy allocator type&semi; references are never allocator&hyphen;aware&period;
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/StopCallback_CallbackStorage-05/2constructor-0b.adoc[`StopCallback&lowbar;CallbackStorage`]         [.small]#[constructor]#
| Constructors
| xref:BloombergLP/bslstl/StopCallback_CallbackStorage-05/callback.adoc[`callback`] 
| Return an lvalue referring to the callback&period;
|===



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