[#mp_units-get_common_unit-0d]
= xref:mp_units.adoc[mp_units]::get_common_unit
:relfileprefix: ../
:mrdocs:

Computes the common unit of two convertible units

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    xref:mp_units/Unit.adoc[Unit] U1,
    /* implementation-defined */ U2>
[[nodiscard]]
consteval
xref:mp_units/Unit.adoc[Unit] auto
get_common_unit(
    U1 u1,
    U2 u2);
----

== Return Value

the common unit of `u1` and `u2`

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

[cols="1,4"]
|===
| Name| Description
| *u1*
| first unit
| *u2*
| second unit
|===


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