[#EVP_KEYEXCH_is_a]
= EVP&lowbar;KEYEXCH&lowbar;is&lowbar;a
:mrdocs:

Test whether a key&hyphen;exchange implementation is known by `name&period;`

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
EVP&lowbar;KEYEXCH&lowbar;is&lowbar;a(
    xref:EVP_KEYEXCH.adoc[EVP&lowbar;KEYEXCH] const* keyexch,
    char const* name);
----

== Return Value

1 if `keyexch` matches `name,` or 0 otherwise&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *keyexch*
| Key&hyphen;exchange method to query&period;
| *name*
| Algorithm name or alias&period;
|===


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