[#IsTopoSortedPackage]
= IsTopoSortedPackage
:mrdocs:

If any direct dependencies exist between transactions (i.e. a child spending the output of a parent), checks that all parents appear somewhere in the list before their respective children. No other ordering is enforced. This function cannot detect indirect dependencies (e.g. a transaction's grandparent if its parent is not present).

== Synopsis

Declared in `<policy/packages.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
bool
IsTopoSortedPackage(xref:Package.adoc[Package] const& txns);
----

== Return Value

true if sorted. False if any tx spends the output of a tx that appears later in txns.

== Parameters

[cols="1,4"]
|===
| Name| Description
| *txns*
| Ordered list of transactions to inspect.
|===


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