[#EC_KEY_decoded_from_explicit_params]
= EC&lowbar;KEY&lowbar;decoded&lowbar;from&lowbar;explicit&lowbar;params
:mrdocs:

Report whether `key&apos;s` group was decoded from explicit curve parameters (deprecated)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
&lsqb;&lsqb;deprecated&rsqb;&rsqb;
int
EC&lowbar;KEY&lowbar;decoded&lowbar;from&lowbar;explicit&lowbar;params(xref:EC_KEY.adoc[EC&lowbar;KEY] const* key);
----

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

1 if parameters were explicit, 0 if named&sol;implicit, or a negative value on error&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| EC key to query&period;
|===


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