[#btck_ValidationInterfaceCallbacks-user_data_destroy]
= xref:btck_ValidationInterfaceCallbacks.adoc[btck&lowbar;ValidationInterfaceCallbacks]::user&lowbar;data&lowbar;destroy
:relfileprefix: ../
:mrdocs:

Frees the provided user data structure&period;

== Synopsis

Declared in `&lt;kernel&sol;bitcoinkernel&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:btck_DestroyCallback.adoc[btck&lowbar;DestroyCallback] user&lowbar;data&lowbar;destroy;
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