[#BloombergLP-bslstl-StopCallback_CallbackStorage-06-2constructor-03]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/StopCallback_CallbackStorage-06.adoc[StopCallback_CallbackStorage]::StopCallback_CallbackStorage
:relfileprefix: ../../../
:mrdocs:

Initialize the stored callback by forwarding the specified `arg` to the constructor of `t_CALLBACK`; the specified `allocator` is used to supply memory if `t_CALLBACK` is allocator‐aware (and ignored otherwise).

== Synopsis

Declared in `<bslstl_stoptoken.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ARG>
StopCallback_CallbackStorage(
    xref:BloombergLP/bslstl/StopCallback_CallbackStorage-06/allocator_type.adoc[allocator_type] const& allocator,
    t_ARG&& arg);
----


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