[#BloombergLP-bdlb-Variant_ReturnValueHelper_Matcher]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::Variant&lowbar;ReturnValueHelper&lowbar;Matcher
:relfileprefix: ../../
:mrdocs:

This struct is a component&hyphen;private struct&period; Do _not_ use&period; This provides functions, the matching of which are used by Variant&lowbar;ReturnValueHelper to determine whether the template parameter type `VISITOR` has the member `ResultType` defined&period;

== Synopsis

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

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

== Static Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Variant_ReturnValueHelper_Matcher/match-0c.adoc[`match`] 
| `match` overloads
|===



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