[#BloombergLP-bslstl-Variant_ConstructFromStdTag]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::Variant&lowbar;ConstructFromStdTag
:relfileprefix: ../../
:mrdocs:

This component&hyphen;private tag type is used as a parameter type for constructors of `Variant&lowbar;Base` that accept a `std&colon;&colon;variant`&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct Variant&lowbar;ConstructFromStdTag;
----


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