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

Metafunction that yields (is derived from) a model tag type that indicates the AA model preferred for the specified type &hyphen;&hyphen; one of `AAModelPmr`, `AAModelBsl`, `AAModelLegacy`, `AAModelStl`, or `AAModelNone`&period; If `TYPE` supports more than one of AA models, then the result is the first in the preceding list that is supported&period;

== Synopsis

Declared in `&lt;bslma&lowbar;aamodel&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class TYPE&gt;
struct AAModel
    : &sol;&ast; implementation-defined &ast;&sol;::type
----

== Base Classes

[cols="1,4"]
|===
| Name| Description
| `&sol;&ast; implementation-defined &ast;&sol;::type`
| 
|===


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