[#mp_units-operator_star-0a]
= xref:mp_units.adoc[mp_units]::operator*
:relfileprefix: ../
:mrdocs:

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename Value,
    std::derived_from<quantity> Q>
requires (!Quantity<Value>) &&
            (!Reference<Value>) && detail::InvokeResultOf<quantity_spec, std::multiplies<>, const Value&, rep>
[[nodiscard]]
constexpr
xref:mp_units/QuantityOf.adoc[QuantityOf<quantity_spec>] auto
operator*(
    Value const& val,
    Q const& q);
----


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