[#GetEntriesForConflicts]
= GetEntriesForConflicts
:mrdocs:

Get all descendants of iters_conflicting. Checks that there are no more than MAX_REPLACEMENT_CANDIDATES distinct clusters affected.

== Synopsis

Declared in `<policy/rbf.h>`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
----
[[requires_capability(0x7f2e3130f6b8)]]
std::optional<std::string>
GetEntriesForConflicts(
    xref:CTransaction.adoc[CTransaction] const& tx,
    xref:CTxMemPool.adoc[CTxMemPool]& pool,
    xref:CTxMemPool/setEntries.adoc[CTxMemPool::setEntries] const& iters_conflicting,
    xref:CTxMemPool/setEntries.adoc[CTxMemPool::setEntries]& all_conflicts);
----

== Return Value

an error message if the number of affected clusters would exceed MAX_REPLACEMENT_CANDIDATES, std::nullopt otherwise

== Parameters

[cols="1,4"]
|===
| Name| Description
| *tx* [in]
| The replacement transaction being evaluated.
| *pool* [in]
| The mempool searched for conflicting entries.
| *iters_conflicting* [in]
| The set of iterators to mempool entries.
| *all_conflicts* [out]
| Populated with all the mempool entries that would be replaced, which includes iters_conflicting and all entries' descendants. Not cleared at the start; any existing mempool entries will remain in the set.
|===


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