[#HMAC_CTX_free]
= HMAC_CTX_free
:mrdocs:

Free an HMAC context.

== Synopsis

Declared in `<openssl/hmac.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
HMAC_CTX_free(xref:HMAC_CTX.adoc[HMAC_CTX]* ctx);
----

[WARNING]
====
https://en.cppreference.com/cpp/language/attributes/deprecated[Deprecated^]. Use of this entity is allowed but discouraged.
====
== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Context to free, or NULL.
|===


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