[#BIO_get_new_index]
= BIO&lowbar;get&lowbar;new&lowbar;index
:mrdocs:

Allocate a new unique BIO type index for a custom BIO&lowbar;METHOD&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
BIO&lowbar;get&lowbar;new&lowbar;index();
----

== Return Value

New type index in the BIO&lowbar;TYPE&lowbar;START range, or a negative value on failure&period;


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