[#RAND_seed]
= RAND&lowbar;seed
:mrdocs:

Mix `num` bytes from `buf` into the PRNG (equivalent to RAND&lowbar;add with full entropy)&period;

== Synopsis

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

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
RAND&lowbar;seed(
    void const* buf,
    int num);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *buf*
| Bytes to mix into the generator state&period;
| *num*
| Number of bytes at `buf&semi;` treated as `num` bytes of randomness&period;
|===


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