[#OBJ_dup]
= OBJ_dup
:mrdocs:

Deep‐copy an ASN1_OBJECT.

== Synopsis

Declared in `<openssl/objects.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:ASN1_OBJECT.adoc[ASN1_OBJECT]*
OBJ_dup(xref:ASN1_OBJECT.adoc[ASN1_OBJECT] const* o);
----

== Return Value

Newly allocated ASN1_OBJECT, or NULL on error; free with ASN1_OBJECT_free().

== Parameters

[cols="1,4"]
|===
| Name| Description
| *o*
| Object to duplicate.
|===


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