[#mp_units-pow-04]
= xref:mp_units.adoc[mp_units]::pow
:relfileprefix: ../
:mrdocs:

Computes the value of a reference raised to the `Num/Den` power

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
consteval
/* implementation-defined */
pow(xref:mp_units/reference-0b2.adoc[reference] r);
----

== Return Value

The result of computation

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

[cols="1,4"]
|===
| Name| Description
| *Num*
| Exponent numerator
| *Den*
| Exponent denominator
|===

== Parameters

[cols="1,4"]
|===
| Name| Description
| *r*
| Reference being the base of the operation
|===


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