[#mp_units-operator_star-01a]
= xref:mp_units.adoc[mp_units]::operator*
:relfileprefix: ../
:mrdocs:

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    typename FwdRep,
    xref:mp_units/Reference.adoc[Reference] R,
    xref:mp_units/RepresentationOf.adoc[RepresentationOf<get_quantity_spec(R{})>] Rep = std::remove_cvref_t<FwdRep>>
requires detail::OffsetUnit<decltype(get_unit(R{}))>
[[deprecated("2.3.0: References using offset units (e.g., temperatures) should be constructed with the `delta` or `point` helpers")]]
constexpr
auto
operator*(
    FwdRep&& lhs,
    R r);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]: 2.3.0: References using offset units (e.g., temperatures) should be constructed with the `delta` or `point` helpers. Use of this entity is allowed but discouraged.
====

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