[#BloombergLP-bslstl-Optional_IsBslOptional-07]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslstl.adoc[bslstl]::Optional_IsBslOptional
:relfileprefix: ../../
:mrdocs:

Metafunction that is `false_type` for types that are not `bsl::optional`.

== Synopsis

Declared in `<bslstl_optional.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class t_TYPE>
struct Optional_IsBslOptional
    : xref:bsl/false_type.adoc[bsl::false_type]
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:bsl/false_type.adoc[bsl::false_type]`
| Metafunction representing the boolean constant `false`.
|===

== Specializations

[cols="1"]
|===
| Name
| xref:BloombergLP/bslstl/Optional_IsBslOptional-0d.adoc[`Optional_IsBslOptional<bsl::optional<t_TYPE>>`] 
|===



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