[#CBlockIndex-m_chain_tx_count]
= xref:CBlockIndex.adoc[CBlockIndex]::m&lowbar;chain&lowbar;tx&lowbar;count
:relfileprefix: ../
:mrdocs:

(memory only) Number of transactions in the chain up to and including this block&period; This value will be non&hyphen;zero if this block and all previous blocks back to the genesis block or an assumeutxo snapshot block have reached the VALID&lowbar;TRANSACTIONS level&period;

== Synopsis

Declared in `&lt;chain&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
uint64&lowbar;t m&lowbar;chain&lowbar;tx&lowbar;count = &lcub;0&rcub;;
----


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