[#mp_units-Quantity-0c]
= xref:mp_units.adoc[mp&lowbar;units]::Quantity
:relfileprefix: ../
:mrdocs:

A concept matching all quantities in the library

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template&lt;typename T&gt;
concept Quantity = detail&colon;&colon;is&lowbar;derived&lowbar;from&lowbar;specialization&lowbar;of&lowbar;quantity&lt;T&gt;;
----

== Description

Satisfied by all types being a either specialization or derived from `quantity`


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