[#BloombergLP-bslstl-Variant_Union-0d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Variant_Union-0a.adoc[Variant&lowbar;Union]&lt;t&lowbar;HEAD, t&lowbar;TAIL&period;&period;&period;&gt;
:relfileprefix: ../../
:mrdocs:

This partial specialization uses template recursion because C&plus;&plus; does not support member packs&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;
    class t&lowbar;HEAD,
    class&period;&period;&period; t&lowbar;TAIL&gt;
union xref:BloombergLP/bslstl/Variant_Union-0a.adoc[Variant&lowbar;Union]&lt;t&lowbar;HEAD, t&lowbar;TAIL&period;&period;&period;&gt;;
----

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bslstl/Variant_Union-0d/2constructor-05.adoc[`Variant&lowbar;Union`]         [.small]#[constructor]#
| Constructors
|===


== Data Members

[cols="1"]
|===
| Name
| xref:BloombergLP/bslstl/Variant_Union-0d/d_head.adoc[`d&lowbar;head`] [.small]#[variant member]#
| xref:BloombergLP/bslstl/Variant_Union-0d/d_tail.adoc[`d&lowbar;tail`] [.small]#[variant member]#
|===



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