[#BloombergLP-bslstl-Optional_Base-08-2constructor-0a]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::xref:BloombergLP/bslstl/Optional_Base-08.adoc[Optional_Base<t_TYPE, false>]::Optional_Base
:relfileprefix: ../../../
:mrdocs:

Create an `Optional_Base` whose value is forwarded from `value`.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_ANY_TYPE>
Optional_Base(
    std::allocator_arg_t allocatorArg,
    xref:BloombergLP/bslstl/Optional_Base-08/AllocType.adoc[AllocType] allocator,
    xref:BloombergLP/bslstl/Optional_ConstructFromForwardRef.adoc[BloombergLP::bslstl::Optional_ConstructFromForwardRef] tag,
    t_ANY_TYPE&& value);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *allocatorArg*
| tag selecting the allocator‐extended constructor
| *allocator*
| allocator used to supply memory
| *tag*
| tag selecting this constructor overload
| *value*
| value compared with or used to initialize the optional
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#