[#BIO_free_all]
= BIO&lowbar;free&lowbar;all
:mrdocs:

Free `a` and every BIO linked after it in the chain (alias for BIO&lowbar;vfree())&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
BIO&lowbar;free&lowbar;all(xref:BIO.adoc[BIO]* a);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| First BIO in the chain to free&semi; NULL is ignored&period;
|===


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