[#mp_units-operator_slash-0d3]
= xref:mp_units.adoc[mp_units]::operator/
:relfileprefix: ../
:mrdocs:

Divides a reference by another reference

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename Q2,
    typename U2>
[[nodiscard]]
consteval
/* implementation-defined */
operator/(
    xref:mp_units/reference-0b2.adoc[reference] r1,
    xref:mp_units/reference-0b2.adoc[reference<Q2, U2>] r2);
----

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:mp_units/reference-0b2.adoc[reference], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Return Value

a reference resulting from dividing the quantity specifications and the units

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

[cols="1,4"]
|===
| Name| Description
| *r1*
| the reference to divide
| *r2*
| the reference to divide by
|===


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