[#BloombergLP-bdlat_HasFallbackEnumerator]
= xref:BloombergLP.adoc[BloombergLP]::bdlat_HasFallbackEnumerator
:relfileprefix: ../
:mrdocs:

This trait may be declared for "enumeration" types that have a fallback enumerator value. If this trait is declared to be `true` for the specified `TYPE` but the trait `bdlat_IsBasicEnumeration` has not previously been declared to be `true` for `TYPE`, the behavior is undefined.

== Synopsis

Declared in `<bdlat_typetraits.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
struct bdlat_HasFallbackEnumerator
    : bslmf::DetectNestedTrait<TYPE, bdlat_HasFallbackEnumerator>::type
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `bslmf::DetectNestedTrait<TYPE, bdlat_HasFallbackEnumerator>::type`
| 
|===


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