[#ASN1_INTEGER_get_uint64]
= ASN1&lowbar;INTEGER&lowbar;get&lowbar;uint64
:mrdocs:

Convert an ASN&period;1 INTEGER to a host uint64&lowbar;t (must be non&hyphen;negative and in range)&period;

== Synopsis

Declared in `&lt;openssl&sol;asn1&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
int
ASN1&lowbar;INTEGER&lowbar;get&lowbar;uint64(
    uint64&lowbar;t* pr,
    xref:ASN1_INTEGER.adoc[ASN1&lowbar;INTEGER] const* a);
----

== Return Value

1 on success, or 0 if `a` is NULL, negative, or out of uint64&lowbar;t range&period;

== Parameters

[cols="1,4"]
|===
| Name| Description
| *pr*
| Receives the unsigned value on success&period;
| *a*
| INTEGER to convert&period;
|===


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