[#mp_units-operator_3way-0c8]
= xref:mp_units.adoc[mp_units]::operator<=>
:relfileprefix: ../
:mrdocs:

Three‐way comparison operator

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    std::derived_from<quantity_point> QP,
    xref:mp_units/QuantityPointOf.adoc[QuantityPointOf<absolute_point_origin>] QP2>
requires std::three_way_comparable_with<quantity_type, typename QP2::quantity_type>
[[nodiscard]]
constexpr
auto
operator<=>(
    QP const& lhs,
    QP2 const& rhs);
----

== Return Value

The relative order of the objects

== Parameters

[cols=2]
|===
| Name
| Description
| *lhs*
| The left operand
| *rhs*
| The right operand
|===


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