[#BloombergLP-bslstl-Variant_ConstructFromStdTag]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::Variant_ConstructFromStdTag
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:mrdocs:

This component‐private tag type is used as a parameter type for constructors of `Variant_Base` that accept a `std::variant`.

== Synopsis

Declared in `<bslstl_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct Variant_ConstructFromStdTag;
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