[#DH_check_params_ex]
= DH&lowbar;check&lowbar;params&lowbar;ex
:mrdocs:

Validate Diffie&hyphen;Hellman p&sol;g (and q if present) and report problems via the error queue (deprecated)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;deprecated&rsqb;&rsqb;
int
DH&lowbar;check&lowbar;params&lowbar;ex(xref:DH.adoc[DH] const* dh);
----

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

1 if the parameters look suitable, or 0 if checks fail (reasons are pushed to the error stack)&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *dh*
| DH object whose domain parameters are checked&period;
|===


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