[#operator_3way-09]
= operator<=>
:mrdocs:

Orders identifiers by kind, then by wrapped value.

== Synopsis

Declared in `<primitives/transaction_identifier.h>`

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

== Return Value

The ordering of a relative to b.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The left‐hand identifier.
| *b*
| The right‐hand identifier.
|===


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