[#operator_lt-07e]
= operator<
:mrdocs:

Order two destinations by their public keys.

== Synopsis

Declared in `<addresstype.h>`

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

[NOTE]
====
This function is a https://en.cppreference.com/w/cpp/language/friend[hidden friend] of xref:PubKeyDestination.adoc[PubKeyDestination], declared only inside that class: it can be found only through argument-dependent lookup.
====

== Return Value

True if `a`'s public key orders before `b`'s.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| The first destination.
| *b*
| The second destination.
|===


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