[#CMerkleBlock-2constructor-06]
= xref:CMerkleBlock.adoc[CMerkleBlock]::CMerkleBlock
:relfileprefix: ../
:mrdocs:

Create from a CBlock, filtering transactions according to filter Note that this will call IsRelevantAndUpdate on the filter for each transaction, thus the filter will likely be modified.

== Synopsis

Declared in `<merkleblock.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
CMerkleBlock(
    xref:CBlock.adoc[CBlock] const& block,
    xref:CBloomFilter.adoc[CBloomFilter]& filter);
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *block*
| The block to build the merkle proof from.
| *filter*
| The bloom filter selecting which transactions to include; updated per transaction.
|===


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