[#ASN1_item_dup]
= ASN1_item_dup
:mrdocs:

Deep‐copy an ASN.1 value described by `it.`

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void*
ASN1_item_dup(
    xref:ASN1_ITEM.adoc[ASN1_ITEM] const* it,
    void const* x);
----

== Return Value

Newly allocated copy, or NULL on error; free with ASN1_item_free.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *it*
| ASN.1 item describing the type of `x.`
| *x*
| Value to duplicate.
|===


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