[#BloombergLP-bslstl-Optional_Base-05-2constructor-01a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base]::Optional_Base
:relfileprefix: ../../../
:mrdocs:

Create an `Optional_Base` object having the value of the specified `original` object. Use the currently installed default allocator to supply memory.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Optional_Base(xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base] const& original);
----


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