Function UpdateCoins

src/main.cpp:2185–2210

}

void UpdateCoins(const CTransaction& tx, CValidationState& state, CCoinsViewCache& inputs, CTxUndo& txundo, int nHeight)
{
    // mark inputs spent
    if (!tx.IsCoinBase()) {
        txundo.vprevout.reserve(tx.vin.size());
        for (const CTxIn &txin : tx.vin) {
            CCoinsModifier coins = inputs.ModifyCoins(txin.prevout.hash);
            unsigned nPos = txin.prevout.n;

            if (nPos >= coins->vout.size() || coins->vout[nPos].IsNull())
                assert(false);
            // mark an outpoint spent, and construct undo information
            txundo.vprevout.push_back(CTxInUndo(coins->vout[nPos]));
            coins->Spend(nPos);
            if (coins->vout.size() == 0) {
                CTxInUndo &undo = txundo.vprevout.back();
                undo.nHeight = coins->nHeight;
                undo.fCoinBase = coins->fCoinBase;
                undo.fCoinStake = coins->fCoinStake;
                undo.nVersion = coins->nVersion;
            }
        }
    }
    // add outputs
    inputs.ModifyNewCoins(tx.GetHash(), tx.IsCoinBase())->FromTx(tx,nHeight);
}

void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, int nHeight)
{