[#BloombergLP-bdlb-VariantImp_Traits-_04enum]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlb.adoc[bdlb]::xref:BloombergLP/bdlb/VariantImp_Traits.adoc[VariantImp_Traits]::Unnamed enum
:relfileprefix: ../../../
:mrdocs:

Compile‐time traits computed from the variant's held types.

== Synopsis

Declared in `<bdlb_variant.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
enum Unnamed enum;
----

== Members

[cols="1,4"]
|===
| Name| Description
| `k_VARIANT_USES_BSLMA_ALLOCATOR` 
| `true` if any held type uses `bslma::Allocator`.
| `k_VARIANT_IS_BITWISE_COPYABLE` 
| `true` if every held type is bitwise copyable.
| `k_VARIANT_IS_BITWISE_MOVEABLE` 
| `true` if every held type is bitwise moveable.
| `VARIANT_USES_BSLMA_ALLOCATOR` 
| Deprecated alias for `k_VARIANT_USES_BSLMA_ALLOCATOR`.
| `VARIANT_IS_BITWISE_COPYABLE` 
| Deprecated alias for `k_VARIANT_IS_BITWISE_COPYABLE`.
| `VARIANT_IS_BITWISE_MOVEABLE` 
| Deprecated alias for `k_VARIANT_IS_BITWISE_MOVEABLE`.
|===



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