[#BloombergLP-bslstl-Optional_Base-08-2constructor-071] = 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: == Synopsis Declared in `<bslstl_optional.h>` [source,cpp,subs="verbatim,replacements,macros,-callouts"] ---- template<class t_ANY_TYPE> Optional_Base( std::allocator_arg_t, xref:BloombergLP/bslstl/Optional_Base-08/AllocType.adoc[AllocType], xref:BloombergLP/bslstl/Optional_MoveConstructFromOtherOptional.adoc[BloombergLP::bslstl::Optional_MoveConstructFromOtherOptional], xref:BloombergLP/bslstl/Optional_Base-05.adoc[Optional_Base<t_ANY_TYPE>]&&); ---- [.small]#Created with https://www.mrdocs.com[MrDocs]#