Method SpendCoin

src/coins.cpp:174–196

}

bool CCoinsViewCache::SpendCoin(const COutPoint &outpoint, Coin *moveout) {
    CCoinsMap::iterator it = FetchCoin(outpoint);
    if (it == cacheCoins.end()) {
        return false;
    }
    Assume(TrySub(m_dirty_count, it->second.IsDirty()));
    Assume(TrySub(cachedCoinsUsage, it->second.coin.DynamicMemoryUsage()));
    TRACE5(utxocache, spent, outpoint.GetTxId().data(), outpoint.GetN(),
           it->second.coin.GetHeight(),
           it->second.coin.GetTxOut().nValue.ToString().c_str(),
           it->second.coin.IsCoinBase());
    if (moveout) {
        *moveout = std::move(it->second.coin);
    }
    if (it->second.IsFresh()) {
        cacheCoins.erase(it);
    } else {
        CCoinsCacheEntry::SetDirty(*it, m_sentinel);
        ++m_dirty_count;
        it->second.coin.Clear();
    }
    return true;
}

static const Coin coinEmpty;