[#miniscript-Node-DuplicateKeyCheck]
= xref:miniscript.adoc[miniscript]::xref:miniscript/Node.adoc[Node]::DuplicateKeyCheck
:relfileprefix: ../../
:mrdocs:

Update duplicate key information in this Node.

== Synopsis

Declared in `<script/miniscript.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
template<typename Ctx>
void
DuplicateKeyCheck(Ctx const& ctx) const;
----

== Description

This uses a custom key comparator provided by the context in order to still detect duplicates for more complicated types.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *ctx*
| Context providing the key comparator used to detect duplicates.
|===


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