[#ChaCha20-2constructor-09]
= xref:ChaCha20.adoc[ChaCha20]::ChaCha20
:relfileprefix: ../
:mrdocs:

For safety, disallow initialization without key&period;

== Synopsis

Declared in `&lt;crypto&sol;chacha20&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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ChaCha20() noexcept = delete;
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