[#RSA_get_multi_prime_extra_count]
= RSA&lowbar;get&lowbar;multi&lowbar;prime&lowbar;extra&lowbar;count
:mrdocs:

Return how many extra primes beyond p and q a multi&hyphen;prime RSA key has (deprecated)&period;

== Synopsis

Declared in `&lt;openssl&sol;rsa&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;deprecated&rsqb;&rsqb;
int
RSA&lowbar;get&lowbar;multi&lowbar;prime&lowbar;extra&lowbar;count(xref:RSA.adoc[RSA] const* r);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Return Value

Extra prime count (&gt;&equals;0), or 0 if the key is two&hyphen;prime &sol; on error&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *r*
| RSA key to query&period;
|===


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