[#mp_units-quantity_point-08-2constructor-0f]
= xref:mp_units.adoc[mp_units]::xref:mp_units/quantity_point-08.adoc[quantity_point]::quantity_point
:relfileprefix: ../../
:mrdocs:

Construct from `QP`

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<xref:mp_units/QuantityPoint.adoc[QuantityPoint] QP>
requires (!QuantityPointOf<QP, absolute_point_origin>) && requires(const QP& src) {
      { src.point_for(point_origin) } ‐> QuantityPointOf<point_origin>;
      quantity_type{src.point_for(point_origin) ‐ point_origin};
    }
constexpr
explicit
quantity_point(QP const& qp);
----

== Parameters

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

| *qp*
| The object to copy construct from
|===


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