[#BloombergLP-bslstl-Variant_Base-baseEmplace]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Variant_Base.adoc[Variant_Base]::baseEmplace
:relfileprefix: ../../../
:mrdocs:

Create the alternative with index (template parameter) `t_INDEX` in place, direct‐initialized from the specified `args`. If this `Variant_Base` object already holds a value, that contained value is destroyed before the new object is created. If the alternative is allocator‐aware, it uses the allocator specified upon the construction of this `Variant_Base` object to supply memory; passing an allocator argument to this method results in two allocators being passed to the alternative constructor, resulting in a likely compilation error. Note that if the constructor of the alternative exits via an exception, this object is left in the valueless by exception state.

== Synopsis

Declared in `<bslstl_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    size_t t_INDEX,
    class... t_ARGS>
void
baseEmplace(t_ARGS&&... args);
----


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