[#mdc2_ctx_st-num]
= xref:mdc2_ctx_st.adoc[mdc2&lowbar;ctx&lowbar;st]::num
:relfileprefix: ../
:mrdocs:

Number of valid bytes currently buffered in `data` (0 &period;&period; MDC2&lowbar;BLOCK&hyphen;1)&period;

== Synopsis

Declared in `&lt;openssl&sol;mdc2&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
unsigned int num;
----


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