[#BloombergLP-bdlar-VtableUtil_ByCategory-0e]
= xref:BloombergLP.adoc[BloombergLP]::xref:BloombergLP/bdlar.adoc[bdlar]::VtableUtil&lowbar;ByCategory
:relfileprefix: ../../
:mrdocs:

Metafunction mapping a `bdlat` type category tag to its corresponding vtable utility type&period;

== Synopsis

Declared in `&lt;bdlar&lowbar;vtableutil&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;class t&lowbar;CATEGORY&gt;
struct VtableUtil&lowbar;ByCategory;
----

== Specializations

[cols="1,4"]
|===
| Name| Description
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-036.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::Array&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;Array`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-02.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::Choice&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;Choice`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-0c.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::CustomizedType&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;CustomizedType`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-03f.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::DynamicType&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;DynamicType`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-09.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::Enumeration&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;Enumeration`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-08.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::NullableValue&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;NullableValue`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-04.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::Sequence&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;Sequence`&period;
| xref:BloombergLP/bdlar/VtableUtil_ByCategory-01.adoc[`VtableUtil&lowbar;ByCategory&lt;bdlat&lowbar;TypeCategory::Simple&gt;`] 
| Specialization of `VtableUtil&lowbar;ByCategory` for `bdlat&lowbar;TypeCategory&colon;&colon;Simple`&period;
|===



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