[#mp_units-get_common_quantity_spec-0a]
= xref:mp_units.adoc[mp_units]::get_common_quantity_spec
:relfileprefix: ../
:mrdocs:

Returns the common quantity specification of three or more quantity specifications

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[nodiscard]]
consteval
xref:mp_units/QuantitySpec.adoc[QuantitySpec] auto
get_common_quantity_spec(
    auto q1,
    auto q2,
    auto q3,
    auto... rest)
requires requires { mp_units::get_common_quantity_spec(mp_units::get_common_quantity_spec(q1, q2), q3, rest...); };
----

== Return Value

the common quantity specification obtained by folding all arguments pairwise

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

[cols="1,4"]
|===
| Name| Description
| *q1*
| first quantity specification value
| *q2*
| second quantity specification value
| *q3*
| third quantity specification value
| *rest*
| any remaining quantity specification values
|===


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