[#mp_units-constrained-operator_star_eq]
= xref:mp_units.adoc[mp_units]::xref:mp_units/constrained.adoc[constrained]::operator*=
:relfileprefix: ../../
:mrdocs:

Multiplication assignment operator

== Synopsis

Declared in `<mp‐units/constrained.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
constexpr
xref:mp_units/constrained.adoc[constrained]&
operator*=(xref:mp_units/constrained.adoc[constrained] const& rhs)
requires requires(T& a, const T b) {
      { a *= b } ‐> std::same_as<T&>;
    };
----

== Return Value

Reference to the current object

== Parameters

[cols="1,4"]
|===
|Name|Description

| *rhs*
| The right operand
|===


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