[#OSSL_DECODER_CTX_get_num_decoders]
= OSSL&lowbar;DECODER&lowbar;CTX&lowbar;get&lowbar;num&lowbar;decoders
:mrdocs:

Return how many decoder implementations are currently attached to `ctx&period;`

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
OSSL&lowbar;DECODER&lowbar;CTX&lowbar;get&lowbar;num&lowbar;decoders(xref:OSSL_DECODER_CTX.adoc[OSSL&lowbar;DECODER&lowbar;CTX]* ctx);
----

== Return Value

Number of attached decoders, or 0 if `ctx` is NULL&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Decoder context to query, or NULL&period;
|===


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