[#BloombergLP-bdlb-Variant_EqualityTestVisitor]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::Variant_EqualityTestVisitor
:relfileprefix: ../../
:mrdocs:

This visitor, when invoked as a non‐modifiable function object on an instance of some template parameter `TYPE`, tests the equality of the value of that instance and of another instance held in a buffer specified at construction of this visitor, and stores the result into its publicly accessible `d_result` member.

== Synopsis

Declared in `<bdlb_variant.h>`

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

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Variant_EqualityTestVisitor/2constructor.adoc[`Variant_EqualityTestVisitor`]         [.small]#[constructor]#
| Create an equality‐test visitor comparing against the value in the specified `buffer`.
| xref:BloombergLP/bdlb/Variant_EqualityTestVisitor/operator_call-0a.adoc[`operator()`] 
| Function call operators
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Variant_EqualityTestVisitor/d_buffer_p.adoc[`d_buffer_p`] 
| Peer buffer holding the value to compare against (held, not owned).
| xref:BloombergLP/bdlb/Variant_EqualityTestVisitor/d_result.adoc[`d_result`] 
| Stores the result of the equality comparison.
|===



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