[#TxGraph-AddDependency]
= xref:TxGraph.adoc[TxGraph]::AddDependency
:relfileprefix: ../
:mrdocs:

Add a dependency between two specified transactions. If a staging graph exists, the dependency is only added there. Parent may not be a descendant of child already (but may be an ancestor of it already, in which case this is a no‐op). If either transaction is already removed, this is a no‐op.

== Synopsis

Declared in `<txgraph.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
virtual
void
AddDependency(
    xref:TxGraph/Ref.adoc[Ref] const& parent,
    xref:TxGraph/Ref.adoc[Ref] const& child) noexcept = 0;
----

== Parameters

[cols="1,4"]
|===
| Name| Description
| *parent*
| Reference to the parent (spent‐from) transaction.
| *child*
| Reference to the child (spending) transaction.
|===


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