[#mp_units-get_dimension-0f]
= xref:mp_units.adoc[mp_units]::get_dimension
:relfileprefix: ../
:mrdocs:

== Synopsis

Declared in `<mp‐units/framework/quantity_spec_definitions.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<xref:mp_units/QuantitySpec.adoc[QuantitySpec] QS>
[[nodiscard]]
consteval
xref:mp_units/Dimension.adoc[Dimension] auto
get_dimension(QS qs);
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:mp_units/quantity_spec-0a6.adoc[quantity_spec<QS, Args...>], declared inside an implementation-defined base class: it can be found only through argument-dependent lookup.
====

== Return Value

[NOTE]
====
The return value https://en.cppreference.com/cpp/language/attributes/nodiscard[should not be discarded^].
====

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