Function GetFee

src/feerate.cpp:23–47

template <bool ceil>
static Amount GetFee(size_t nBytes_, Amount nSatoshisPerK) {
    assert(nBytes_ <= uint64_t(std::numeric_limits<int64_t>::max()));
    int64_t nSize = int64_t(nBytes_);

    // Ensure fee is rounded up when truncated if ceil is true.
    Amount nFee = Amount::zero();
    if (ceil) {
        nFee = Amount(nSize * nSatoshisPerK % 1000 > Amount::zero()
                          ? nSize * nSatoshisPerK / 1000 + SATOSHI
                          : nSize * nSatoshisPerK / 1000);
    } else {
        nFee = nSize * nSatoshisPerK / 1000;
    }

    if (nFee == Amount::zero() && nSize != 0) {
        if (nSatoshisPerK > Amount::zero()) {
            nFee = SATOSHI;
        }
        if (nSatoshisPerK < Amount::zero()) {
            nFee = -SATOSHI;
        }
    }

    return nFee;
}

Amount CFeeRate::GetFee(size_t nBytes) const {
    return ::GetFee<false>(nBytes, nSatoshisPerK);