[#wallet-CoinSelectionParams-m_min_change_target]
= xref:wallet.adoc[wallet]::xref:wallet/CoinSelectionParams.adoc[CoinSelectionParams]::m&lowbar;min&lowbar;change&lowbar;target
:relfileprefix: ../../
:mrdocs:

Mininmum change to target in Knapsack solver and CoinGrinder&colon; select coins to cover the payment and at least this value of change&period;

== Synopsis

Declared in `&lt;wallet&sol;coinselection&period;h&gt;`

[source,cpp,subs="verbatim,replacements,macros,-callouts"]
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xref:CAmount.adoc[CAmount] m&lowbar;min&lowbar;change&lowbar;target = &lcub;0&rcub;;
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