Differential D3039 Diff 8757 src/primitives/transaction.h

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src/primitives/transaction.h

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void SetNull() {		void SetNull() {
nValue = -SATOSHI;		nValue = -SATOSHI;
scriptPubKey.clear();		scriptPubKey.clear();
}		}

bool IsNull() const { return nValue == -SATOSHI; }		bool IsNull() const { return nValue == -SATOSHI; }

Amount GetDustThreshold(const CFeeRate &minRelayTxFee) const {
/**
* "Dust" is defined in terms of CTransaction::minRelayTxFee, which has
* units satoshis-per-kilobyte. If you'd pay more than 1/3 in fees to
* spend something, then we consider it dust. A typical spendable
* non-segwit txout is 34 bytes big, and will need a CTxIn of at least
* 148 bytes to spend: so dust is a spendable txout less than
* 546*minRelayTxFee/1000 (in satoshis). A typical spendable segwit
* txout is 31 bytes big, and will need a CTxIn of at least 67 bytes to
* spend: so dust is a spendable txout less than 294*minRelayTxFee/1000
* (in satoshis).
*/
if (scriptPubKey.IsUnspendable()) {
return Amount::zero();
}

size_t nSize = GetSerializeSize(*this, SER_DISK, 0);

// the 148 mentioned above
nSize += (32 + 4 + 1 + 107 + 4);

return 3 * minRelayTxFee.GetFee(nSize);
}

bool IsDust(const CFeeRate &minRelayTxFee) const {
return (nValue < GetDustThreshold(minRelayTxFee));
}

friend bool operator==(const CTxOut &a, const CTxOut &b) {		friend bool operator==(const CTxOut &a, const CTxOut &b) {
return (a.nValue == b.nValue && a.scriptPubKey == b.scriptPubKey);		return (a.nValue == b.nValue && a.scriptPubKey == b.scriptPubKey);
}		}

friend bool operator!=(const CTxOut &a, const CTxOut &b) {		friend bool operator!=(const CTxOut &a, const CTxOut &b) {
return !(a == b);		return !(a == b);
}		}

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