With the separation of CENT and MIN_TX_FEE, it is now reasonable
to create change outputs between 0.01 and 0.0005, as these are
spendable according to the policy, even though they require a fee
to be paid.
Also, when enough fee was already present, everything can go into
a change output, without further increasing the fee.
dPriority += (double)nCredit * pcoin.first->GetDepthInMainChain();
}
- // Fill a vout back to self with any change
- int64 nChange = nValueIn - nTotalValue;
- if (nChange >= CENT)
+ int64 nChange = nValueIn - nValue - nFeeRet;
+
+ // if sub-cent change is required, the fee must be raised to at least MIN_TX_FEE
+ // or until nChange becomes zero
+ if (nFeeRet < MIN_TX_FEE && nChange > 0 && nChange < CENT)
+ {
+ int64 nMoveToFee = min(nChange, MIN_TX_FEE - nFeeRet);
+ nChange -= nMoveToFee;
+ nFeeRet += nMoveToFee;
+ }
+
+ if (nChange > 0)
{
// Note: We use a new key here to keep it from being obvious which side is the change.
// The drawback is that by not reusing a previous key, the change may be lost if a