[#v3_ext_method-ext_nid]
= xref:v3_ext_method.adoc[v3_ext_method]::ext_nid
:relfileprefix: ../
:mrdocs:

NID of the extension OID this method implements.

== Synopsis

Declared in `<openssl/x509v3.h>`

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


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