[#mp_units-quantity_cast-0f]
= xref:mp_units.adoc[mp_units]::quantity_cast
:relfileprefix: ../
:mrdocs:

`quantity_cast` overloads

== Synopses

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

Explicit cast of a quantity type


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    xref:mp_units/QuantitySpec.adoc[QuantitySpec] auto ToQS,
    typename FwdQ,
    xref:mp_units/Quantity.adoc[Quantity] Q = std::remove_cvref_t<FwdQ>>
requires (castable(Q::quantity_spec, ToQS)) && (MP_UNITS_WEAK_UNIT_OF(MP_UNITS_NONCONST_TYPE(Q::unit), ToQS))
[[nodiscard]]
constexpr
xref:mp_units/Quantity.adoc[Quantity] auto
xref:mp_units/quantity_cast-0b.adoc[quantity_cast](FwdQ&& q);
----

[.small]#xref:mp_units/quantity_cast-0b.adoc[_» more..._]#

Explicit cast of a quantity point type


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    xref:mp_units/QuantitySpec.adoc[QuantitySpec] auto ToQS,
    typename FwdQP,
    xref:mp_units/QuantityPoint.adoc[QuantityPoint] QP = std::remove_cvref_t<FwdQP>>
requires (castable(QP::quantity_spec, ToQS)) && (MP_UNITS_WEAK_UNIT_OF(MP_UNITS_NONCONST_TYPE(QP::unit), ToQS))
[[nodiscard]]
constexpr
xref:mp_units/QuantityPoint.adoc[QuantityPoint] auto
xref:mp_units/quantity_cast-05.adoc[quantity_cast](FwdQP&& qp);
----

[.small]#xref:mp_units/quantity_cast-05.adoc[_» more..._]#

== Template Parameters

[cols=2]
|===
| Name
| Description
| *ToQS*
| a quantity specification to use for a target quantity
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#