[#operator_3way-08]
= operator<=>
:mrdocs:

Three‐way compare two fee rates by their fee/vsize ratio.

== Synopsis

Declared in `<policy/feerate.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
std::strong_ordering
operator<=>(
    xref:CFeeRate.adoc[CFeeRate] const& a,
    xref:CFeeRate.adoc[CFeeRate] const& b) noexcept;
----

== Return Value

Ordering of `a` relative to `b`.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| Left‐hand fee rate.
| *b*
| Right‐hand fee rate.
|===


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