[#OSSL_PARAM_construct_uint64]
= OSSL_PARAM_construct_uint64
:mrdocs:

Construct an OSSL_PARAM describing an unsigned 64‐bit integer at `buf.`

== Synopsis

Declared in `<openssl/params.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:OSSL_PARAM.adoc[OSSL_PARAM]
OSSL_PARAM_construct_uint64(
    char const* key,
    uint64_t* buf);
----

== Return Value

OSSL_PARAM value suitable for inclusion in a parameter array.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *key*
| Parameter name (for example OSSL_PKEY_PARAM_*).
| *buf*
| Address of the uint64_t value to expose.
|===


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