[#mp_units-kind_of]
= xref:mp_units.adoc[mp&lowbar;units]::kind&lowbar;of
:relfileprefix: ../
:mrdocs:

The quantity kind of the hierarchy tree rooted at the quantity specification `Q`

== Synopsis

Declared in `&lt;mp&hyphen;units&sol;framework&sol;quantity&lowbar;spec&lowbar;definitions&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;xref:mp_units/QuantitySpec.adoc[QuantitySpec] auto Q&gt;
requires requires &lcub; typename kind&lowbar;of&lowbar;&lt;decltype(Q)&gt;&semi; &rcub;
constexpr xref:mp_units/kind_of_-00.adoc[kind&lowbar;of&lowbar;&lt;decltype(Q)&gt;] kind&lowbar;of;
----

== Template Parameters

[cols="1,4"]
|===
| Name| Description
| *Q*
| the root quantity specification of the kind
|===


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