[#BloombergLP-bslstl-Optional_Base-05-2constructor-0a8]
= 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 same value as the specified `original` object by moving the contents of `original` to the newly‐created object. The allocator associated with `original` is propagated for use in the newly‐created object. `original` is left in a valid, but unspecified state.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
Optional_Base(xref:BloombergLP/bslmf/MovableRef.adoc[BloombergLP::bslmf::MovableRef<Optional_Base>] original) noexcept(/* see-below */);
----

== Exception specification

This function is potentially-throwing unless `bsl::is_nothrow_move_constructible<t_TYPE>::value`.


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