[#FastRandomContext-fillrand-04]
= xref:FastRandomContext.adoc[FastRandomContext]::fillrand
:relfileprefix: ../
:mrdocs:

Fill a span with random bytes&period;

== Synopsis

Declared in `&lt;random&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
void
fillrand(std::span&lt;std::byte&gt; span) noexcept;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *span*
| The output span to fill with random bytes&period;
|===


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