[#BIO_set_next]
= BIO_set_next
:mrdocs:

Set the next BIO in a filter chain after `b.`

== Synopsis

Declared in `<openssl/bio.h>`

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

== Parameters

[cols="1,4"]
|===
| Name| Description
| *b*
| BIO whose successor is replaced.
| *next*
| BIO to become the next filter, or NULL to clear the link.
|===


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