[#EVP_PKEY_missing_parameters]
= EVP&lowbar;PKEY&lowbar;missing&lowbar;parameters
:mrdocs:

Test whether an EVP&lowbar;PKEY lacks required algorithm parameters&period;

== Synopsis

Declared in `&lt;openssl&sol;evp&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP&lowbar;PKEY&lowbar;missing&lowbar;parameters(xref:EVP_PKEY.adoc[EVP&lowbar;PKEY] const* pkey);
----

== Return Value

Non&hyphen;zero if parameters are missing, or 0 if parameters are present (or not required)&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pkey*
| Key to inspect&period;
|===


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