[#ComputeMerkleRoot]
= ComputeMerkleRoot
:mrdocs:

Compute a Merkle root from the provided leaf hashes. If non‐null, `*mutated` is set to true if two identical hashes are paired at any tree level before the odd‐count hash duplication step, and false otherwise.

== Synopsis

Declared in `<consensus/merkle.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:uint256.adoc[uint256]
ComputeMerkleRoot(
    std::vector<uint256> hashes,
    bool* mutated = nullptr);
----

== Return Value

The Merkle root of the given hashes.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *hashes*
| The leaf hashes to build the tree from.
| *mutated*
| If non‐null, receives whether a pair of identical hashes was detected.
|===


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