[#mempoolentry_txid-operator_call-0c]
= xref:mempoolentry_txid.adoc[mempoolentry_txid]::operator()
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:mrdocs:

Function call operators

== Synopses

Declared in `<txmempool.h>`

Returns the txid of the given transaction.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:mempoolentry_txid/result_type.adoc[result_type]
xref:mempoolentry_txid/operator_call-0bd.adoc[operator()](xref:CTransactionRef.adoc[CTransactionRef] const& tx) const;
----

[.small]#xref:mempoolentry_txid/operator_call-0bd.adoc[_» more..._]#

Returns the txid of the given mempool entry.


[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
xref:mempoolentry_txid/result_type.adoc[result_type]
xref:mempoolentry_txid/operator_call-0b1.adoc[operator()](xref:CTxMemPoolEntry.adoc[CTxMemPoolEntry] const& entry) const;
----

[.small]#xref:mempoolentry_txid/operator_call-0b1.adoc[_» more..._]#

== Return Value

* The txid of the transaction.
* The txid of the entry's transaction.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *tx*
| The transaction to hash.
| *entry*
| The mempool entry to read the transaction from.
|===


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