[#bio_mmsg_cb_args_st-num_msg]
= xref:bio_mmsg_cb_args_st.adoc[bio&lowbar;mmsg&lowbar;cb&lowbar;args&lowbar;st]::num&lowbar;msg
:relfileprefix: ../
:mrdocs:

Number of BIO&lowbar;MSG elements addressed by this multi&hyphen;message operation&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
size&lowbar;t num&lowbar;msg;
----


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