[#EVP_KDF_up_ref]
= EVP_KDF_up_ref
:mrdocs:

Increment the reference count on a fetched EVP_KDF method.

== Synopsis

Declared in `<openssl/kdf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP_KDF_up_ref(xref:EVP_KDF.adoc[EVP_KDF]* kdf);
----

== Return Value

1 on success, or 0 on failure.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *kdf*
| KDF method returned by EVP_KDF_fetch().
|===


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