[#operator_eq-012]
= operator==
:mrdocs:

Compare two extended public keys for equality of all fields (excluding version).

== Synopsis

Declared in `<pubkey.h>`

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

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

== Return Value

true if depth, fingerprint, child index, chain code and pubkey are equal.

== Parameters

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


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