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

This visitor, when invoked as a non‐modifiable function object on an instance of some template parameter `TYPE`, will copy‐insert that instance to create an instance of the same `TYPE` in an uninitialized buffer specified at construction of this visitor.

== Synopsis

Declared in `<bdlb_variant.h>`

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

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Variant_CopyConstructVisitor/2constructor.adoc[`Variant_CopyConstructVisitor`]         [.small]#[constructor]#
| Create a copy‐construct visitor targeting the specified `buffer` using the specified `allocator`.
| xref:BloombergLP/bdlb/Variant_CopyConstructVisitor/operator_call.adoc[`operator()`] 
| Copy‐construct a `TYPE` into the buffer supplied at construction.
|===


== Data Members

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlb/Variant_CopyConstructVisitor/d_allocator_p.adoc[`d_allocator_p`] 
| Allocator used for construction.
| xref:BloombergLP/bdlb/Variant_CopyConstructVisitor/d_buffer_p.adoc[`d_buffer_p`] 
| Destination buffer for copy construction.
|===



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