[#BIO_free_all]
= BIO_free_all
:mrdocs:

Free `a` and every BIO linked after it in the chain (alias for BIO_vfree()).

== Synopsis

Declared in `<openssl/bio.h>`

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

== Parameters

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


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