[#EVP_PKEY_meth_set_param_check]
= EVP_PKEY_meth_set_param_check
:mrdocs:

Set the domain‐parameter validation callback on an EVP_PKEY_METHOD (deprecated).

== Synopsis

Declared in `<openssl/evp.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[deprecated]]
void
EVP_PKEY_meth_set_param_check(
    xref:EVP_PKEY_METHOD.adoc[EVP_PKEY_METHOD]* pmeth,
    int(* check)(xref:EVP_PKEY.adoc[EVP_PKEY]*));
----

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

[cols="1,4"]
|===
| Name| Description
| *pmeth*
| Method being constructed.
| *check*
| Callback that returns 1 if `pkey` parameters are valid, or 0 otherwise.
|===


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