[#BloombergLP-bslstl-Optional_DataImp-emplace-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Optional_DataImp.adoc[Optional_DataImp]::emplace
:relfileprefix: ../../../
:mrdocs:

Create an object of `StoredType` in `d_buffer` using the specified `allocator` and `args` and return a reference providing modifiable access to the underlying `t_TYPE` object.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class... t_ARGS>
t_TYPE&
emplace(
    xref:BloombergLP/bslma/Allocator.adoc[bslma::Allocator]* allocator,
    t_ARGS&&... args);
----


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