[#private_key_st-key_free]
= xref:private_key_st.adoc[private&lowbar;key&lowbar;st]::key&lowbar;free
:relfileprefix: ../
:mrdocs:

Non&hyphen;zero when `key&lowbar;data` was allocated and should be freed with the structure&period;

== Synopsis

Declared in `&lt;openssl&sol;x509&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int key&lowbar;free;
----


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