[#mp_units-operator_3way-06]
= xref:mp_units.adoc[mp_units]::operator<=>
:relfileprefix: ../
:mrdocs:

Three‐way comparison operators

== Synopses

Declared in `<mp‐units/ext/fixed_string.h>`

Three‐way comparison operator


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<std::size_t N2>
[[nodiscard]]
consteval
auto
xref:mp_units/operator_3way-05.adoc[operator<=>](
    xref:mp_units/basic_fixed_string-08.adoc[basic_fixed_string] const& lhs,
    CharT const(& rhs)[]);
----

[.small]#xref:mp_units/operator_3way-05.adoc[_» more..._]#

Three‐way comparison operator


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<std::size_t N2>
[[nodiscard]]
constexpr
auto
xref:mp_units/operator_3way-0d.adoc[operator<=>](
    xref:mp_units/basic_fixed_string-08.adoc[basic_fixed_string] const& lhs,
    xref:mp_units/basic_fixed_string-08.adoc[basic_fixed_string<CharT, N2>] const& rhs);
----

[.small]#xref:mp_units/operator_3way-0d.adoc[_» more..._]#

Three‐way comparison operator


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    std::size_t N2,
    std::size_t M2>
[[nodiscard]]
constexpr
auto
xref:mp_units/operator_3way-0b.adoc[operator<=>](
    xref:mp_units/symbol_text-032.adoc[symbol_text] const& lhs,
    xref:mp_units/symbol_text-032.adoc[symbol_text<N2, M2>] const& rhs) noexcept;
----

[.small]#xref:mp_units/operator_3way-0b.adoc[_» more..._]#

Three‐way comparison operator


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    std::derived_from<quantity> Q,
    xref:mp_units/RepresentationOf.adoc[RepresentationOf<quantity_spec>] Value>
requires detail::DimensionlessOne<Q::reference> && std::three_way_comparable_with<rep, Value>
[[nodiscard]]
constexpr
auto
xref:mp_units/operator_3way-0c3.adoc[operator<=>](
    Q const& lhs,
    Value const& rhs);
----

[.small]#xref:mp_units/operator_3way-0c3.adoc[_» more..._]#

Three‐way comparison operator


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<
    std::derived_from<quantity> Q,
    auto R2,
    typename Rep2>
requires requires { typename std::common_type_t<quantity, quantity<R2, Rep2>>; } &&
             std::three_way_comparable<typename std::common_type_t<quantity, quantity<R2, Rep2>>::rep>
[[nodiscard]]
constexpr
auto
xref:mp_units/operator_3way-01.adoc[operator<=>](
    Q const& lhs,
    xref:mp_units/quantity-01.adoc[quantity<R2, Rep2>] const& rhs);
----

[.small]#xref:mp_units/operator_3way-01.adoc[_» more..._]#

Three‐way comparison operator


[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
xref:mp_units/operator_3way-0c8.adoc[operator<=>](
    QP const& lhs,
    QP2 const& rhs);
----

[.small]#xref:mp_units/operator_3way-0c8.adoc[_» more..._]#


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