[#mp_units-quantity-01-operator_assign]
= xref:mp_units.adoc[mp_units]::xref:mp_units/quantity-01.adoc[quantity]::operator=
:relfileprefix: ../../
:mrdocs:

Assigns a new numerical value to `*this`.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename FwdValue>
requires detail::ImplicitFromNumber<reference> && detail::RepAssignableFrom<rep, FwdValue>
constexpr
xref:mp_units/quantity-01.adoc[quantity]&
operator=(FwdValue&& val);
----

== Return Value

`*this`

== Parameters

[cols="1,4"]
|===
| Name| Description
| *val*
| the numerical value to assign
|===


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