[#BIO_get_init]
= BIO_get_init
:mrdocs:

Test whether a custom BIO has been initialized by its create() callback.

== Synopsis

Declared in `<openssl/bio.h>`

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

== Return Value

Non‐zero if initialized, or 0 otherwise.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| BIO to query.
|===


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