[#ASN1_INTEGER_set_int64]
= ASN1_INTEGER_set_int64
:mrdocs:

Set an ASN.1 INTEGER to a signed 64‐bit value.

== Synopsis

Declared in `<openssl/asn1.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
ASN1_INTEGER_set_int64(
    xref:ASN1_INTEGER.adoc[ASN1_INTEGER]* a,
    int64_t r);
----

== Return Value

1 on success, or 0 on error.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *a*
| Integer to update.
| *r*
| Value to store.
|===


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