[#mp_units-quantity_point-08-in-0b5]
= xref:mp_units.adoc[mp_units]::xref:mp_units/quantity_point-08.adoc[quantity_point]::in
:relfileprefix: ../../
:mrdocs:

Returns this quantity point re‐expressed in another unit, applying an explicit rounding policy.

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    xref:mp_units/UnitOf.adoc[UnitOf<quantity_spec>] ToU,
    xref:mp_units/RoundingPolicy.adoc[RoundingPolicy] Policy>
requires detail::ExplicitlyCastable<unit, ToU{}, rep> && detail::ValidRoundingPolicyFor<Policy, rep, rep>
[[nodiscard]]
constexpr
xref:mp_units/QuantityPointOf.adoc[QuantityPointOf<quantity_spec>] auto
in(
    ToU to_u,
    Policy policy) const;
----

== Return Value

The equivalent quantity point expressed in `to_u`.

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

[cols="1,4"]
|===
| Name| Description
| *to_u*
| the target unit
| *policy*
| the rounding policy to apply when the conversion is not exact
|===


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