[#ASN1_item_new_ex]
= ASN1_item_new_ex
:mrdocs:

Allocate a new ASN.1 value described by `it,` with library context for algorithm fetches.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:ASN1_VALUE.adoc[ASN1_VALUE]*
ASN1_item_new_ex(
    xref:ASN1_ITEM.adoc[ASN1_ITEM] const* it,
    xref:OSSL_LIB_CTX.adoc[OSSL_LIB_CTX]* libctx,
    char const* propq);
----

== Return Value

Newly allocated ASN1_VALUE, or NULL on error; free with ASN1_item_free.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *it*
| ASN.1 item template for the type to create.
| *libctx*
| Library context for any algorithm fetches during construction, or NULL for the default.
| *propq*
| Property query for those fetches, or NULL.
|===


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