[#ASN1_item_i2d_mem_bio]
= ASN1_item_i2d_mem_bio
:mrdocs:

Encode an ASN.1 value described by `it` into a newly allocated memory BIO.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:BIO.adoc[BIO]*
ASN1_item_i2d_mem_bio(
    xref:ASN1_ITEM.adoc[ASN1_ITEM] const* it,
    xref:ASN1_VALUE.adoc[ASN1_VALUE] const* val);
----

== Return Value

Memory BIO holding the DER encoding, or NULL on error; free with BIO_free().

== Parameters

[cols="1,4"]
|===
| Name| Description
| *it*
| ASN.1 item descriptor for the type of `val.`
| *val*
| Value to encode (may be NULL for some optional types).
|===


[.small]#Created with https://www.mrdocs.com[MrDocs]#