[#BloombergLP-bslma-AAModelIsSupported-01d]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bslma.adoc[bslma]::xref:BloombergLP/bslma/AAModelIsSupported-06.adoc[AAModelIsSupported]<TYPE, xref:BloombergLP/bslma/AAModelStl.adoc[AAModelStl]>
:relfileprefix: ../../
:mrdocs:

Specialization of `AAModelIsSupported` for `MODEL == AAModelStl`, yielding `true_type` if `TYPE::allocator_type` exists; otherwise, yielding `false_type` unless `AAModelIsSupported<TYPE, AAModelBsl>` is true. The latter condition exists so that *bsl‐AA* always implies *stl‐AA* even if `AAModelIsSupported<TYPE, AAModelBsl>` is explicitly specialized to true for a type that does not have an `allocator_type` member.

== Synopsis

Declared in `<bslma_aamodel.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<class TYPE>
struct xref:BloombergLP/bslma/AAModelIsSupported-06.adoc[AAModelIsSupported]<TYPE, xref:BloombergLP/bslma/AAModelStl.adoc[AAModelStl]>
    : xref:bsl/integral_constant-02.adoc[bsl::integral_constant<bool, HasAllocatorType<TYPE>::value || AAModelIsSupported<TYPE, AAModelBsl>::value>]
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `xref:bsl/integral_constant-02.adoc[bsl::integral_constant<bool, HasAllocatorType<TYPE>::value || AAModelIsSupported<TYPE, AAModelBsl>::value>]`
| Metafunction representing a compile‐time constant of the specified (template parameter) `t_TYPE` with the specified (template parameter) `t_VALUE`.
|===

== Type Aliases

[cols="1,4"]
|===
| Name| Description
| xref:bsl/integral_constant-02/type.adoc[`type`] 
| Alias for this `integral_constant` specialization.
| xref:bsl/integral_constant-02/value_type.adoc[`value_type`] 
| 
|===


== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:bsl/integral_constant-02/operator_call.adoc[`operator()`] 
| Return a copy of the template argument `t_VALUE`.
| xref:bsl/integral_constant-02/2conversion.adoc[`operator value_type`] 
| 
|===


== Static Data Members

[cols="1"]
|===
| Name
| xref:bsl/integral_constant-02/value.adoc[`value`] 
|===



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