[#v3_ext_method-ext_nid]
= xref:v3_ext_method.adoc[v3&lowbar;ext&lowbar;method]::ext&lowbar;nid
:relfileprefix: ../
:mrdocs:

NID of the extension OID this method implements&period;

== Synopsis

Declared in `&lt;openssl&sol;x509v3&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int ext&lowbar;nid;
----


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