[#TxInUndoFormatter]
= TxInUndoFormatter
:mrdocs:

Formatter for undo information for a CTxIn

== Synopsis

Declared in `<undo.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
struct TxInUndoFormatter;
----

== Description

Contains the prevout's CTxOut being spent, and its metadata as well (coinbase or not, height). The serialization contains a dummy value of zero. This is compatible with older versions which expect to see the transaction version there.

== Member Functions

[cols="1,4"]
|===
| Name| Description
| xref:TxInUndoFormatter/Ser.adoc[`Ser`] 
| Serializes the undo information for one spent output.
| xref:TxInUndoFormatter/Unser.adoc[`Unser`] 
| Deserializes the undo information for one spent output.
|===



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