[#OSSL_CMP_MSG_dup]
= OSSL_CMP_MSG_dup
:mrdocs:

Duplicate an OSSL_CMP_MSG structure.

== Synopsis

Declared in `<openssl/cmp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OSSL_CMP_MSG.adoc[OSSL_CMP_MSG]*
OSSL_CMP_MSG_dup(xref:OSSL_CMP_MSG.adoc[OSSL_CMP_MSG] const* a);
----

== Return Value

Copy of `a,` or NULL on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| Value to duplicate.
|===


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