DOCS: Mention that libcrypto has helper functions for OSSL_PARAMs

Fixes #11165

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/15073)

diff --git a/doc/man3/OSSL_PARAM.pod b/doc/man3/OSSL_PARAM.pod
index 593bb21ef1e1a0a2bbf0a607ad32ba6ee33c6899..98d75c9fa285ba836c447ecb4d1006114fd924f2 100644 (file)
--- a/doc/man3/OSSL_PARAM.pod
+++ b/doc/man3/OSSL_PARAM.pod
@@ -71,6 +71,12 @@ is NULL.  The usual full terminating template is:
 
 This can also be specified using L<OSSL_PARAM_END(3)>.
 
+=head2 Functional support
+
+Libcrypto offers a limited set of helper functions to handle
+B<OSSL_PARAM> items and arrays, please see L<OSSL_PARAM_get_int(3)>.
+Developers are free to extend or replace those as they see fit.
+
 =head2 B<OSSL_PARAM> fields
 
 =over 4