[#BIO_ctrl_wpending]
= BIO_ctrl_wpending
:mrdocs:

Return the number of bytes buffered for writing in a BIO (ctrl pending write count).

== Synopsis

Declared in `<openssl/bio.h>`

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

== Return Value

Pending write byte count.

== Parameters

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


[.small]#Created with https://www.mrdocs.com[MrDocs]#