[#ASN1_bn_print]
= ASN1_bn_print
:mrdocs:

Print a labeled BIGNUM to a BIO in hex, with indentation.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
ASN1_bn_print(
    xref:BIO.adoc[BIO]* bp,
    char const* number,
    xref:BIGNUM.adoc[BIGNUM] const* num,
    unsigned char* buf,
    int off);
----

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *bp*
| BIO that receives the formatted output.
| *number*
| Label printed before the value (for example a field name).
| *num*
| Big integer to print; NULL prints nothing and returns success.
| *buf*
| Unused historical parameter (ignored; may be NULL).
| *off*
| Indentation depth in spaces.
|===


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