[#BN_GENCB_free]
= BN&lowbar;GENCB&lowbar;free
:mrdocs:

Free a BN&lowbar;GENCB allocated by BN&lowbar;GENCB&lowbar;new()&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
BN&lowbar;GENCB&lowbar;free(xref:BN_GENCB.adoc[BN&lowbar;GENCB]* cb);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *cb*
| Callback object to free, or NULL (no&hyphen;op)&period;
|===


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