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

Three‐way comparison operator

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<std::size_t N2>
[[nodiscard]]
constexpr
auto
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);
----

== 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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